What is the solution to this system of equations?

x + 2 y = 4. 2 x minus 2 y = 5.
(3, Negative 5 and one-half)
(3, one-half)
no solution
infinitely many solutions

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

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