The slope of a line is -3 and the y-intercept is (0, 4). What is the equation of the line in slope-intercept form?

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Me. i can't figure out this question. give an explanation too. .

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes