What is three fourth divided by four

(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 ?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2