Answer:
Step-by-step explanation:
f(x) = x + 7
g(x) = x^2 - 1
Part A: f(x^2 - 1) = x^2 - 1 + 7 = x^2 + 6
Part B: g(x+7) = (x + 7)^2 - 1 = x^2 + 14x + 49 - 1 = x^2 + 14x + 48
There are 351 watermelons left.
9x+12=5x+4
9x-5x=12-4
4x=8
x=8/4
x=2
Boys to girls ratio is 3:4 so for every 7 students 3 are boys and 4 are girls bc 3+4 is total students in the ratio. boys are 3/7 so out of 28 students there are 12 boys and girls are 4/7 so out of 28 students 16 are girls
12/28 are boys
16/28 are girls