3x + 20 = 40 + 40
3x = 60
X = 20
V + 71 = 107
V = 36
7.5 hours total divided by .5 hours per arrangement would be 15 arrangements.
It can help you by checking your answer
Divide your lifestyle amount by the percentage:
33,000 / 0.70 = $47,142.86 ( Round the answer as needed.)
