Answer:
4hrs
Step-by-step explanation:
Fabuloso charges = 50 + 30x = 80
Clorux charges = 70+25x = 95
£15 difference =( 3 * 5 ) = 30-25 = 5 = 15/3
= 3hrs + 1st hour = 4hrs
Fabuloso charges = 50 + 30(4) = 80+90 = $170
Clorux charges = 70+25(4) = 95 + 75=$170
= 4hrs