Which of the graph of f(x)=x-1/x^2-x-6

(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 ?

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

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.