If a gradien of a line a is 4 what is the gradient of the line perpendicular to line a

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Nine people are going to share a 128-ounces bottle of soda. how many ounces will each person get drink? choose the correct equation and answer for this situation

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)