The water temperature
in the swimming pool
began at 79 degrees,
and it is rising 0.8
degrees each hour. If
the water temperature is
84 degrees, then how
many hours have passed?
How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a. about 4 b. about 8 c. about 40 d. about 21