Under her cell phone plan, Alexa pays a flat cost of $39.50 per month and $4 per gigabyte. She wants to keep her bill at $53.10 per month. Which equation could be
used to determine g, the number of gigabytes of data Alexa can use while staying
within her budget?

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

Which is the completely factored from of xy^3-x^3y

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?