Step-by-step explanation:
commutative property of multiplication
3 * 5 means 5 + 5 + 5 which equals 15.
5 * 3 means 3 + 3 + 3 + 3 + 3 which equals 15.
nA.Replace ''the difference with subtraction
B.Replace''the number of serving '' with a variable x.
C.Replace ''four'' with 4.
Step-by-step explanation: .
Answer:
7
Step-by-step explanation:
Recognize the differnce of 2 perfect squares
a²-b²=(a-b)(a+b)
so