Answer:
543
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
When looking for the perimeter just add all the numbers together.
Money spent + money left over = total money
money spent + 9 = 30
We don't know the price of each shirt, so let x = price of 1 shirt.
Then, 3 shirts cost 3 times as much as x, or 3x.
She spent 3x.
3x + 9 = 30
5/2 or 2.5
Hope this helps!