How many 3/8 does it take to make 3/2 ?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?