Which of the following equations has the se solutions as the equation 3x+2y=-12

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?

What is the number 321,000,000 in scientific notation? also what is the number? ?

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account