What is the y-intercept of the line whose equation is y =1/2 x - 3?

3. solve by graphing: y = 2x + 6 x + y = -3

The production line where you work can assemble 5 appliers every 30 minutes at this rate how long should it take the line to assemble 125 amplifiers

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?