Craig stops at a gas station to fill his tank. he must choose between full-service and self-service and between regular, midgrade and premium gasoline. how many possible combinations are there?
a.
2
c.
6
b.
4
d.
8

Can (2,3 and square root 10) be sides ona right triangle?

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?