Jim decided to go for a drive in his car. He started out at 0 miles per hour (mph). He then

accelerated 20 mph down his street. Then, to get on the highway he accelerated another 35 miles

per hour. A car was going slow in front of him so he slowed down 11 mph. He then got off the

highway, so he slowed down another 7 mph. At what speed is he driving?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Opposite angles in a parrellelogram are

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.