A. x+y=10
9x+4y=13
B. x-3y=-18
9x+4y=9
C.3x-y=2
4x+9y=36
D.3x-y=6
4x+9y=4

How do i do this? i don’t understand

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?

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?