Whats the function for y=-4x+3

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.