Simplify: - (2√6÷√2 + √3) +( 2√6 ÷ √2 + √3 ) - (8√3 ÷ √6 + √3)

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

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? $$