The answer to this question is D because the ratio is 3 boys to 8 girls. Therefore there should be 3 boys for every 8 girls. So if you divide 15 and 40 you would get your ratio 3:8.
Answer:

Step-by-step explanation:
A revolution is 360 degrees.
5/6 of a revolution is 5/6 of 360 degrees.
5/6 × 360 = 300
They can set up total 30 tables in 5 hours.
<h3>How is a multiplication explained?</h3>
Multiply in mathematics refers to the continual addition of sets of same size.
2 × 3 = 6
It can be interpreted this way:
Three times two equals six.
Three times two equals six.
Six is two threes.
Given,
Andersons can set up 6 tables in 1 hour
Tables they can set up in 5 hours = 5 × 6
= 30
To learn more about multiplication from given link
brainly.com/question/4721701
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Answer:
10,471.2042
Step-by-step explanation:
Tbh Im not too sure
Answer:
the answer is 7×9=(7×10)-(7×1)