The decimal from the fraction is .375
X = car cost
y = appliances cost
x + y = 15200
7.5%(y) + 6.5%(x) = 1015
x=12500
y= 2700
So the car costs $12,500

this equals = 3 4/40 =☆ 3 1/10☆
David's : y = 12,350 - (240x)
Amanda's : y = 12,350 + (240x)
David's equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings