Alvin is 13 years older than Elga. The sum of their ages is 87 . What is Elga's age?

Frank has $66.50 in his account on sunday. over the next week, he makes the following changes to his balance via deposits and purchases: day debit ($) credit ($) monday 60.33 80.75 tuesday 54.45 wednesday 49.20 15.00 thursday 35.40 friday 16.85 75.00 saturday 80.56 on what day does frank first get charged an overdraft fee? a. wednesday b. thursday c. friday d. saturday select the best answer from the choices provided a b c d

This question awards 100 ! i really don’t want to fail i will also mark you !

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?