Here are the answers with solutions for each question:

Question 16

Identify a solid with a uniform triangular cross-section.
Answer: Triangular Prism
Explanation: A triangular prism has uniform triangular cross-sections when sliced parallel to its bases.

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Question 17

Which angle below is greater than a quarter turn?

• A quarter turn equals $90^\circ$.
• Answer: Angle B (It is greater than $90^\circ$).

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Question 18

Calculate the mean of Jalhisa's scores if she scored $67, 89, 0, 100,$ and $94$ in five examinations.

The formula for the mean:
$\text{Mean} = \frac{\text{Sum of all scores}}{\text{Number of scores}}$

Step 1: Add the scores.
$67 + 89 + 0 + 100 + 94 = 350$

Step 2: Divide the total by the number of scores.
$\text{Mean} = \frac{350}{5} = 70$

Answer: 70

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Question 19

Identify the mode of the numerals listed below.

Given numbers:
$27, 33, 21, 20, 35, 20, 26, 32, 27, 33, 31, 27$

Step 1: Count the frequency of each number:

• $27$ appears 3 times.
• $33$ appears 2 times.
• $21, 20, 35, 26, 32,$ and $31$ each appear 1 time.

Step 2: Identify the mode (most frequent value):
The mode is 27.

Answer: 27

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Question 20

Complete the tally chart for snacks preferred by 33 students.

Given Data:

• Apples = 9 students → $\text{Tally: } \| \| \| \| \| \| \| \| \| \|$
• Pretzels = 11 students → $\text{Tally: } \| \| \| \| \| \| \| \| \| \| \| \|$

Step 1: Total students = 33
Find the number of students for Chips:
$\text{Chips} = 33 - (9 + 11) = 33 - 20 = 13$

Step 2: Draw the tally for 13 students:
$\| \| \| \| \| \| \| \| \| \| \| \| \| \|$

Answer: Chips = 13 students.

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Summary of Answers

1. 16: Triangular Prism
2. 17: Angle B
3. 18: 70
4. 19: 27
5. 20: Chips = 13 students (Tally: $||||| ||||| |||$)

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Would you like a step-by-step breakdown for any specific question? Let me know!

Related Questions:

1. What is the difference between mean, median, and mode?
2. How do you calculate angles in a turn (quarter turn, half turn)?
3. Can you explain what a prism is and give other examples?
4. What is a frequency table, and how is it used to represent data?
5. How do you calculate the range of a dataset?

Tip: To verify your answers, always recheck your addition and count for repeated numbers carefully!