Examine the system of equations. 2x − 4y = 6, x − 2y = 3 how many solutions does this system of equations have?
none
one
infinity many

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

What are the solutions of the following system? y=-2x^2 y=x-2