Question

Me ajudaaaaaa urgente preciso entregar amanhã !!

Answer 1

a)y=550+250.x

b)sim,pois segue a formula f(x)=ax+b

c)y=550+250.4
y=550+1000
y=1550
o total a ser pago e de 1550

d)1300=550+250x
1300-550=250x
x=750/250
×=3