If 5+ 20x2to the power of 2-3x = 10 2x2to the negative 2x power+ 5, what is the value of x?

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts. which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me