An envelope is 9 square inches and a stamp is 1 1/8 square inches. What is the unit rate? How many times bigger is the envelope to the stamp? How many times smaller is the stamp to the envelope?

What’s the answer ? use the picture to see the problem

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

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.