Consider the function p(t) shown, state the intervals on which the function is increasing.

A)

t < 1 and 3 < t < 4

C)

1 < t < 3 and t > 4

B)

t < 1 and 3 < t < 5

D)

0 < t < 2 and t > 5

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?