Out of the 80 garments in Helen's closet, there are 15 shirts. About what percent of her closet do the shirts make

up?

Round to the nearest percent.

(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 ?

Which system of linear inequalities is represented by the graph?

Based on the figures as marked, /\rqs = —