Find the area of the shaded region. round to the nearest whole number

The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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?