So, are of a trapezoid is add the bases, divide the hieght by two, and multiply them together. the bases were 3 and 5, so add them together, you get 8. the height was 2, so divide 2 by 2, you get 1 Multiply them, you get 8 8 is the area of your trapezoid.
The area of a rectangle or a square is to multiply the base times the height. the base was 3 and the height was 10, so multiply and you get 30. 30 is the area of your rectangle.
The area of a triangle is to multiply the base by times the height and then divide by 2. 3 is the base, height is 4, multiply and you get 12. divide 12 by 2, and you get 6. 6 is the area of the triangle.
To find the area of the entire shape, you add all the areas together.
8 is the area of the trapezoid. 30 is the area of the rectangle. 6 is the area of the triangle. 30+8+6=44
Profit will be achieved when the money earned is greater than the money spent so, 336 + (n*12) = n*28 any subsequent units sold would result in profit 336 = 28n - 12n 336 = 16n => n = 336/16 = 21 21 units must be sold to draw even any more would result in profit
