What is the midpoint of 38.90 and 38.88

Should be 38.89.

Since the number in between 88 and 90 is 99, it will be, or should be, 38.89.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )