Answer:
180 ft.
Step-by-step explanation:
Check the picture below.
x = 0, y = -1
10x = 5y + 5
y = 2x - 1
======================
10x = 5(2x - 1) + 5
10x = 10x - 5 + 5
x = 0
y = -1
it will take about 6 months
