Let's solve both problems:

Problem 36:

The task is to convert $101 \frac{3}{8}$ into a decimal.

Step-by-step:

1. First, convert the fraction $\frac{3}{8}$ to decimal: $\frac{3}{8} = 0.375$

2. Now, add this decimal to the whole number $101$: $101 + 0.375 = 101.375$

Thus, the answer to Problem 36 is B) 101.375.

Problem 37:

The task is to find the perimeter of a triangle with sides of length 5, 6, and 7 units.

The perimeter of a triangle is the sum of its sides: $\text{Perimeter} = 5 + 6 + 7 = 18$

Thus, the answer to Problem 37 is A) 18.

Let me know if you need more details or have any questions!

Here are some related questions to help deepen your understanding:

1. How do you convert any mixed number to a decimal?
2. What are the rules for calculating the perimeter of different polygons?
3. How do you identify when a triangle is right-angled based on its sides?
4. Can you explain how to convert fractions to decimals?
5. How can you quickly sum three numbers mentally?

Tip: When adding fractions to whole numbers, always convert the fraction into a decimal first to make calculations easier.