at a local amusement park, the price of rides is $2 per ride and the price of the game is $1 per game. if your budget is $30, complete the table below, and use it to Identify your utility-maximizing combination of rides and games

Yvaries directly as x. y =90 when x=6. find y when x=13

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2