Please help! I will mark brainliest:)

y = 12.00 + (0.50)*(x - 2)

Step-by-step explanation:

x will be the game

y = cost

x - 2 because 2 is the initial

you can test it y = 12 + (0.50)*(3-2)

y = 12 +(0.50)*(1)

y = 12.50

y=-3x+17

Step-by-step explanation:

by using sublimation method

y=-2x+8

+

y=-1/2x+1/2

2y=-3x/2+17/2

2y=-3x+17

2

multiply both sides by 1/2,

then y =-3x+17