Show work !
-26x + 3 = -18

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?