Answer:
25%
Step-by-step explanation:
To solve this, we can use the percent change formula shown in the picture attached below. 
is the new value, 
is the old value, and 
represents the change. For this problem, 80 is the new value and 64 is the old value. Let's plug those numbers into the formula and solve for the percent change:
× 
×
×
Thus, the answer is 25%.
Its easy just subtract so example subtract 480 - ____ just keep adding a number until it tells you the awnser
Answer:
-1x+10
Step-by-step explanation:
51*11=561 615-561=54 54/6=9
They sold 9 discounted pizzas.
