Answer:
19 weeks
Step-by-step explanation:
Greg's goal is $267.5
He already has $125.
so if you take 267.5 - 125 you get 142.5
So to be able to afford the game console, he has to save $142.5
If he puts in $7.5 a week, his savings goal will eventually lower.
142.5 / 7.5 will give you the amount of weeks it will take him to save that much money
142.5 / 7.5 = 19
You could also solve this problem by using the slope intercept form (y=mx+b)
267.5 = 7.5(x) + 125
and solve for x.