Otis measured the heights of several sunflowers. He found that their heights were 2, 3, 3, 5, and 7 feet.

Otis found that the mean was 4 feet and the range was 5
feet.

Which numbers describe the center and spread of this data set?

A. 4 feet describes the center, and 5 feet describes the spread.

B. 2 feet describes the center, and 7 feet describes the spread.

C. 5 feet describes the center, and 4 feet describes the spread.

D. 7 feet describes the center, and 2 feet describes the spread.

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

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.