Mary left camp four hours after jane did. they traveled in opposite directions. mary drove at 48 km/h and jane drove at 72 km/h. how many hours after mary left were the two girls 1008 km apart

Alocal concert promoter purchases 2 3/4 pages of ads. when one of the concerts is cancelled, the promoter cancels 1 5/8 pages of ads. how much advertising space is the concert promoter actually using?

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Which of the following shows the graph of y=2e^x?