If you receive a monthly payment of $1500, will you have enough money to pay for the following items: Rent: $750, Cable & Internet: $200, Car Insurance: $75, Phone Bill: $100, Travel to California: $500 *

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.