Answer:
72in
Step-by-step explanation:
We need to build an equation for each one.
the rate of growth is actually the slope, and their hight is the starting point.
so Alex's is y=1/4x+60
Leo's y=1/2x+48.
y here represents their height so we need to do this:
y=y meaning
1/4x+60=1/2x+48
1/4x=12
x=48 then we replace the value of x
y=1/4x+60
=12+60
y=72in
