Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Find two numbers if their sum is 91 and the ratio is 6: 7?