A guitar is originally priced at $150. The online retailer gives a discount and the guitar is now priced at $75. Enter the percentage discount for the cost of the guitar.

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Zach spent 2/3 hour reading on friday a 11/3 hlurs reading on saturday. how much more time did he read on saturday tha on friday