What is the nth term in the sequence: 15, 22, 31, 42, 55

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

Solve 17= -13 - 8x and show your work.