9. A bag contains 8 purple marbles and 12 green marbles. A marble is drawn and then replaced. This is done 40 times. What is the probability that a purple marble is
drawn at most 15 times? Round your answer to the nearest thousandths place.
a. 123
b. .317
c. 568
d. .440

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

What is the reflection image of (5,-3) across the line y = -x?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?