Answer the following questions attached..

The gradients of perpendicular lines have a negative reciprocal gradient.

a) If A = 4, then the gradient of the line perpendicular to A would be -

b) If B = -3, then the gradient of the line perpendicular to B would be

c) If C = , then the gradient of the line perpendicular to C would be -

Each table requires = 158 quarts paint

Each chair = 23 quarts of paint

Total no. Of coats = 1

Total chairs = 8

Total table = 2

Total paint required = (158×2)+(23×8)

= 500 quarts of paint

Must click thanks and mark brainliest