An inlet pipe can fill a container full of grain in 7 hours and an outlet pipe can empty it in 13 hours. How long will it take to fill the container if both pipes are left open?

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers