To determine the Earnings of Shelley last week, we need to make relations with the values that are given. We let x as the total amount she earned last week by x and y as the additional amount she earned this week We do as follows:
20% additional amount she earned this week = y / 72 - y
y = $ 12
x = 72 - 12 = $60 total earnings last week
Answer:
A: 90
Step-by-step explanation:
Hopefully this helps!
Answer:
A
Step-by-step explanation:
hopes this helps
