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
Answer:
60
Step-by-step explanation:
C) average of a data set
You add all of the data and divide by the number of data
I figured out that number 4 is probably alternate angles. Sorry I couldn't be much help :)
