0.4(5x-15)=2.5(x+3) is this a infinite solution or one solution or no solution

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

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?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.