Kesha bought a new pair of skis for $450. she made a payment of $120 and got a student discount of $40. her mother paid 1/2 of the balance. how much does kesha have left to pay?

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

The area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.