Rueben is six months old and naps twice a day. At 10 a. m. Rueben takes a 50 minute nap which is one-third the length of his 3 p. m. nap. Write and solve an equation to find the length of Ruebens 3 p. m nap.​

(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 of the following graphs represents the function f(x) = 2^x

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers