Please help?? I will give some points.

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?

The area of a circle is equal to 1 dm². find the radius of the circle.