Put the following equation in slope-intercept form: y-3= -1/2(x-1)

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*

Using elimination, what is -4x+2y=-12 4x+8y=-24