Respuesta :

Answer:

It will take 60 weeks for Ernesto to save $315

Answer:

60 weeks or 15 months.

Step-by-step explanation:

y = mx + b

315 = 5.25x + 0

Divide 315 by 5.25 and you get 60, so 60 weeks or 15 months. Check by plugging it into the equation.

315 = 5.25(60) + 0

315 = 5.25(60)

315 = 315