Step-by-step explanation:
s = side of square
l = length of rectangle = s + 3 cm
w = width of rectangle = s - 2 cm
s² + 30 = (s + 3)(s - 2) = s² + - 2s + 3s - 6 = s² + s - 6
30 = s - 6
s = 36 cm
Answer:
120 cups
there are 16 cups in one gallon. 7x16=112 and half of a gallon is 8 cups. So 112+8=120
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