Please help me the picture is above I really need an answer please, I’ll mark as brainliest

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.