How much is 1/2÷8×57÷13+15

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Which number line represents the solution set for the inequality -1/2x> 24?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers