If Line AD is the altitude to line BC what is the slope of AD

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?

Me i'm timed right now! a. (0,-5)b. (0,-3)c. (0,3) d. (0,5)

Oliver makes blueberry jam every year. the number of kinds of jam he makes this year can be represented by the expression 4p -9, where p is the number of pints he made last year