Keelah's clothing store buys coats for 50 and then sells them for 80. what is the percent of markup on the price on the coat

Ared balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. a blue balloon starts at 12.4 meters off the ground and rises at 1.5 meters per second. when will the balloons be at the same height?

Find the complete factored form of the polynomial 40m^3n^2+45m^2n^6

When you answer this can you explain