Please help maths quick

What is the result of adding the system of equations? 2x+y=4 3x-y=6

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

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x