Factor by grouping.
30y + 3h + 10vr + hr

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?