Simplify the expression 2{5+2(7x11-68)]

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?