Last month, Jamal brought his lunch to school 45% of school days. Based on this information, how many times will Jamal bring his lunch to school in the next 20 school days?
A 12
B 15
C 9
D 2
Out of 20 school days, Jamal will bring his lunch 45% of the time, which is 0.45 * 20 = 9 days.
The answer is C.