sarah was thinking of a number. sarah subtracts 20 from it and gets and answer 16.7. What was the original number?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?

Asequence is a function whose is the set of natural numbers