Answer:
The answer is 53
245 = 5y - 20 | y = 53
Explanation:
subtracting 20 ( - 20) represents "twenty days less"
5y represents "five times the number of days"
This is all being compared to Kendra's 245 days of perfect attendance which is why it's "245 ="
Plug it in! & don't forget PEMDAS ----> 5(53) - 20 = 245