Find the value of x, y, and z Write answers as simplified radicals. No Decimals!!!

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab