Answer
Plus all month together
three months have 1/2 inches
one month has 3/4 inches
one month has 1+1/4 inches
one month has 1+1/2 inches
one month has 2 inches
two months have 2+1/4 inches
one month has 2+1/2 inches
two months have 3 inches
totally sum of them = 20 inches
Explanation:
Plus all month together
three months have 1/2 inches
one month has 3/4 inches
one month has 1+1/4 inches
one month has 1+1/2 inches
one month has 2 inches
two months have 2+1/4 inches
one month has 2+1/2 inches
two months have 3 inches
totally sum of them = 20 inches