Ahot air balloon descends 42 feet in a matter of 30 seconds. write an integer to represent the change shown with the hot air balloon.

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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?

Is (0,0) a to ? ys x2 - 4 y> 2x-1