The bakers made 500 muffins. they sold 3/4 of them and 2/5 of the remainder to a charity fundraiser. how many muffins did the bakers have left? ( show steps! )

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

You can find the constant of proportionality by finding the ratio of