Express each fraction as a decimal 20 25

Find the solution of system of equation y= x-4 y=4x+2

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?