A survey found that 5 out of 7 students drink soft drinks daily. If there are 450 students in a school what is a reasonable prediction for the number of students who drink soft drinks daily
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(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 c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

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