Help Me! ASAP! What is the slope of the line?

(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 ?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?