The answer is z=21
Step-by-step explanation:
Plug in y and x
It’s
X = 9 if you was looking for x
In this number the 7 is worth 7 units
Therefore you would need to divide (inverse operation) to get the original number which would be 0.7.
Start by finding 11% of 1,200. To do so, multiply .11 by 1,200 to get 132. Add 132 to 1,200 to get 1,332.
In short, Susan has to pay *$1,332*