20% of 75 = 15
75 - 15 = £60
It should be c) £60
SO heres what you have to do:
Hourly Spent: 60 x 4 = 240
0.10 x 240= 24
24+240=264
$264 is your answer!
Hope this helped!!! ;)
Yo can download the App photomath and it shows you how to divide step by step long numbers