Answer:
Commutative Property
Step-by-step explanation:
In mathematics, a binary operation is commutative if changing the order of the operands does not change the result.
13.75
Slash and dash. turn the both minuses into positives and add like normal. 6.5 plus 7.25 equals 13.75.
7/8 because there are 8 pieces of pizza and they eat 7 slices of pizza.
Answer: 7
Hope this helps!
19
its just addition
