Answer:
y=6x+21
Step-by-step explanation:
simply 3x2+6x+15
Total number of squares = 60 + 80 + 110 + 115 + 95 + 40 = 500
1000/500 = 2 so each little square represents 2 people
60 x 2 as there’s 60 squares from 6-10 so answer is 120
(x + 5) * (x − 5) =
x² - 25
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x * x = x² and 5 * (-5) = -25