Josie started with a debt of $70. She earned $6 per hour for 20 hours of work. How many $5 phone apps can she buy? A: 24 apps

B: 5 apps

C: 10 apps

D: 14 apps

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)