In a collection of dimes than quarters. If there is 29.65$ overall, how many of each are there

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?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?