Simplify, must end in positive exponent

mX -3m^10 X 5m^6

Your friend swims on the school team. in his first four races, his times are 24.7, 23.5, 25.6, and 27.2 seconds. which time listed for his next race would make the range larger?

Find the solution set of this inequality. select the correct graph. |8x+16|> 16

Answer! if you don’t mind, can you explain