Jamal scored 62, 75, 76 and 90 on four tests. What does he need to score on the fifth test to have a MEAN of exactly 80? A.80
B.100
C.93
D.97

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1