What is the image of (-9,-5)(−9,−5) after a reflection over the line y=-xy=−x?

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

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)