Quick Loans will loan you $400 with the understanding that you will repay them $458 in two weeks. What is the APR for this loan?

7x+8y=-18, 4x-9y=-3 solve the system of equations

What is the value of x in the following equation? -3x-2=2x+8

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8