Expression for the calculation 5 times the number 25 and then subtract the quotient of 14 and 7

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account. write an expression to represent the total amount in his savings account.

Find two consexutive odd integers such that the sum of their square is 650

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation