Write the equation of a line that is perpendicular to y = 2x +9
and passes through (-8, -2).

Solve the inequality and graph 6j - 7 < 5

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

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.