An electrician needs to buy 12 3/5 yards of electrical wire. Wire is sold on spools that have 3 1/2yards of wire in each. How many whole spools of wire does the electrician need to buy?

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.