The county water department charges a service fee of $10.15 plus $0.005 for each gallon of water used. The inequality shown is used to determine the number of gallons of water, x, used by customers whose monthly charges range from $35 to $55.

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

What’s the answer ? use the picture to see the problem