Blueberries cost $1.99 per pound. For a recipe, Rayann needs 5.5 pounds of blueberries.

(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 ?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Find the distance between (0,5) & (-4,2)