Respuesta :

1. y= 372000 (1.08)^x
8 years: 549,613.43

2.y= 4200(1.03)^x
7 years: 5165

3.y= 350000(0.97)^x
6 months: 291540.20

4.y=1200(0.98)^x
5 years: 1084