A department store buys 500 shirts at a cost of $9000 and sells them at a selling price of $20 each. Find the percent markup.

Can (2,3 and square root 10) be sides ona right triangle?

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.