HELP ASAP PLSS

Which of the following is another way of expressing ?

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

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?