Evaluate this exponential expression. 4 • (2 + 5)2 - 52 =

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?