Please answer the below question. it would be wonderful if you could solve it as soon as possible

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

Mike wants to make meatloaf. his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork, how much pork will he use? enter your answer as a mixed number in simplest terms.

What 620000 divided by 10 to the third power