If a + b + c = -1, x + y = 7, what is -9a - 7x - 9c - 9b - 7y?
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Answer:
a 10 ft
Step-by-step explanation:
To find the height of similar shapes, write a proportion of equal ratios.
Cross multiply to solve for y.
12y = 15(8)
12y = 120
y=10