Respostas

2014-06-04T12:34:38-03:00
X=10+(4.5)
x=10+(4.10)
x=10+(4.20)
2014-06-04T12:36:09-03:00
Valor fixo de 10 e variável de 4.

f (x) = 4x + 10

5km: 4.5 + 10 = 30 reais
10km: 4.10 + 10 = 50
20km: 4.20 + 10 = 90