Jerry put 7 equally spaced hooks on a straight wire so students could hang up there coats. The whole length is from the first hook to the last hook

(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 ?

Issof claims that the scale factor is 1/2. which statement about his claim is correct

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?