Greater than 100 but less than 150
F(f-1x) will be equal to x
take a simple example
f(x) = 2x
so x = f(x) / 2
f-1(x) = x/2
f(f-1x) = 2 ( x/2) = 2 * x/2 = x
total=147
a:m
1:6 =7
147÷7=21
21×1=21
alice recycled 21 bottles
Multiply base x height then divide by 2 if finding surface are if finding volume multiple base x height x width and divide by 3
