Question

Me salve. porcentagem

Answer 1

1)
108%---3780

100%-------x

108x= 378000

x= 378000/108

x=3500

2)

aumento

300+300×0,2=

300+60= 360

desconto

360-360×0,2=

360-60= 300

3)
a)

M= c(1+i)^n
M= 2730(1+0,03)^2
M= 2730(1,03)^2
M= 2730×1,06
M=2893,80

b)

M= c(1+i)^n
M= 2730(1+0,03)^1
M= 2730×1,03
M=2811,90