Ashop has a sale that offers 20% off all prices.

on the final day they reduce all sale prices by 25%.

alex buys a hairdryer on the final day.

work out the overall percentage reduction on the price of the hairdryer with explanation.

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?