$4
You can get this by setting up 2 equations. One for you and one for your friend. Each should have a cost equation. Let x = adult and y = student.
You: 7x + 16y = 120
Friend: 13x + 9 = 140
Solve using any method.
Answer:
33.34%.
Step-by-step explanation:
Given that,
The actual price of the shirt = $36
Price on sale = $24
We need to find the percent of the decrease. The formula for the percentage is given by :

Putting all the values,

So, the percentage decrease in the price of the shirt is 33.34%.
Answer:
10 + 20 + 2
Easy, make it easy to do mentally than add the remaining
Try to divide 62.01÷ 9 and then do it with the other one