Answer all right for brainiest and 63 points if not the right answer I will report thank you please need done with in a 2 hours

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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.