Asubmarine first went down 725 feet below sea level. it then went up 150 feet. what was the final depth of the submarine? (a) - 875 feet (b) - 575 feet (c) - 725 feet (d) +575 feet

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

Jim had 15 minutes to do 5 laps around his school what would his time be