Answer:

Step-by-step explanation:
Already, we are given 12% of our sample size as 24.
To find the sample size, we equate to find 100%.
Let sample size be denoted by 

Hence, the sample has 200 families.
Answer:
<h2>-11y - 4.1x</h2>
Step-by-step explanation:

1 / 7.15 = 1000 / x......$ 1 to 7.15 rand = $ 1000 to x rand
cross multiply because this is a proportion
(1)(x) = (7.15)(1000)
x = 7150 <=== Sophia got 7150 rand
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