A set of pencils sells for $2.75 and costs $0.60 to make. Twenty-five percent of the profit (the difference between the purchase price and the amount it
costs to make) from each set of pencils goes to a school.
If 300 sets are sold, what is the amount of money that will go to the school?

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.