Aswimming pool can be filled in 16 hours if water enters through a pipe alone, or in 23 hours if water enters through a hose alone. if water is entering through both the pipe and the hose, how long will take to fill the pool

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

What is the result of the following division?

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?