I'll address all the questions in the image you uploaded, one by one.

1. At the San Marcon Formula 1 racing circuit the lap record is 53.65s. How many seconds is this less than 2 minutes?

   • 2 minutes = 120 seconds.
   • 120 seconds - 53.65 seconds = 66.35 seconds.

2. 2 x 28.7 x 5

   • 2 x 28.7 = 57.4
   • 57.4 x 5 = 287

3. £50.00 + £40

   • £50.00 + £40 = £90.00

4. Find 28% of £28.00

   • 28% of £28 = (28/100) * 28 = £7.84

5. What percentage is 6p of £2.00?

   • (6p / £2.00) * 100 = 3%

6. Which two consecutive numbers have a product of 56?

   • 7 x 8 = 56

7. Multiply 40 by 1 ½

   • 1 ½ = 3/2.
   • 40 x 3/2 = 60

8. Find √81

   • √81 = 9

9. The drawing shows a rectangle. Calculate angle x.

   • Since the rectangle's angles are all 90°, the angle x must be 90°.

10. What number is one more than 999,999,997?

    • 999,999,998

11. 1/5 is approximately 0.33 when written as a decimal fraction. Write approximate decimal fractions for: a) 1/3 = 0.33 b) 1/8 = 0.125

12. One can of Croak holds 330 mL. Write, in liters, how much Croak there is in six cans.

    • 330 mL x 6 = 1980 mL
    • 1980 mL = 1.98 liters

13. Jack has £1.27 and Jill has £2.18. They decide to spend one fifth of their total money on vinegar. How much do they spend?

    • Total money = £1.27 + £2.18 = £3.45
    • One fifth of £3.45 = £3.45 / 5 = £0.69

14. How many km are equal to 0.35 of 9km?

    • 0.35 * 9 = 3.15 km

15. Multiply 40 by 1 ½

    • 40 x 1.5 = 60

16. Write 9345 thousandths as a decimal.

    • 9345 thousandths = 0.009345

17. Write 9345 thousandths as a decimal.

    • 9345 thousandths = 0.009345

18. A wine bottle holds 75 cL. How many mL does it hold when it is 1/3 full?

    • 75 cL = 750 mL
    • 1/3 of 750 = 250 mL

19. A regular pentagon has one side of length 30 cm. Find in cm: a) the perimeter of the pentagon:

    • Perimeter = 5 x 30 = 150 cm

    b) the length of one side of the equilateral triangle with the same perimeter:

    • Perimeter = 150 cm, and for an equilateral triangle, each side is 150 / 3 = 50 cm

20. If the triangle is isosceles, calculate the size in degrees of angles a and b.

    • The sum of all angles in a triangle is 180°.
    • Angles a and b are equal, so 180 - 90° = 90°.
    • Angle a = Angle b = 45°

21. The set of fractions above are equivalent. Find the missing numerators x, y, and z.

    • (2/3) = (4/6) = (x/9) = (y/12) = (z/18).
    • x = 6, y = 8, z = 12

22. A fence is made of panels 3m long held by posts placed every 3m. If the fence is to be 36m long how many: a) panels are required:

    • 36m / 3m = 12 panels

    b) posts are required:

    • Posts are placed at the ends, so 12 panels would require 13 posts: 13 posts

23. There are 600 pupils in years 7, 8, and 9. Last Tuesday 97% were in school. How many pupils were absent?

    • 97% of 600 = 0.97 * 600 = 582
    • Absent pupils = 600 - 582 = 18 pupils

Let me know if you need any further clarification or details on any specific question! Would you like to explore more related concepts?

Tip: When working with percentages, it helps to convert percentages to decimals (by dividing by 100) to simplify calculations. For example, 28% becomes 0.28 when you divide 28 by 100.