A certain type of chocolate bar is sold as follows. Single chocolate bar: 82p, or buy one get one half price
Packs of 9: £6, offer: 2 packs for £11
Packs of 18: £10.50 each

What's the cheapest way of buying exactly 50 chocolate bars without any extra?
Find the amount of each type of pack or single bar you need and the total cost of buying 50 packs.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte