To solve this problem you are gonna do subtraction. What you are going to subtract is 24 - 8, because Vanessa took $24.00 from her friend and they want to you figure out how much she needs to pay back and in math when you are trying to figure out problems like this then you would use subtraction.
First you take a protractor and a pencil next, you draw a horizontal line (red) then find the value of the angle, and draw a line with the matched value (green) please look at the image