Question

I need help I don't understand

Answer 1

39.
27 divide 4.5 = 6

f(x)=6x
x = hours
f(6.5)=6(6.5)
f(x) = 39

Answer 2

She would charge $39 for 6.5 hours of cleaning

Explanation:

Set it up as a proportion: 4.5/27 = 6.5/x