I think D.
They both rested for 2 minutes, however they did not rest at the same time, but it doesn't say they did that in the option choice.
Hope this helps!
She wants to fill the garden with dirt so she should measure the area. If she were building a fence outside the garden then she'd measure the perimeter.
Zachary function:
Z(t) = 40 + 20t
Isaac function:
I(t) = 85 + 11t
Graph each function to see the interval of time when one person has more money than the other.
