Help me with this please. Thanks!

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

What is a correct first step in solving the inequality-4(3-5x)> -6x+9

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5