Solve the following system of equations by linear combination: 5x + 2y = 14
y=x-7
plz help

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?