Given the system of equations, what is the y-coordinate of the solution? 5x - 4y= 7
x= 5 - 3/2y

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2