If an initial population of 20 single-celled algae doubles every day, how many algae cells are there in 9 days?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)