if f(x) is an exponential function where f(-2.5) = 4 and f(7.5) = 40 then find the value of f(1.5), to the nearest hundredth

Abus ride for a senior citizen cost $1.25. a monthly pass costs $35. write and inequality that represents the number of times a senior citizen must ride the bus for the monthly pass to be a better deal.

What is the smallest integer n such that n\sqrt{2} is greater than 20

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long. calculate how many feet of fencing he will need to surround the entire lot.