Find two consecutive integers whose sum is 19

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have