Answer:
A
Step-by-step explanation:
100/25 = 4
but we have 5 students absent so 25-5=20
100/20 = 5
so A
7(x+y) because their both factors of 7
Their both are even numbers
Answer:
ab=1
Step-by-step explanation:
Assuming that you meant ab=1
this is because the exponents have to be equal