Audrey has $120 to spend on a tennis racket and lessons. the racket cost $45 and the lesson cost $15 per hour. define a variable. then write and solve an equation to find how many hours of lesson she can afford.

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.