1. If y varies directly with x and y=24 when x=6 find y when x=9

and find x when y=40

2a+7+4ahow many terms? how many variables? any like terms? yes noif yes, which ones? what are the coefficients? any constants? yes noif yes, which ones? simplify the expression by combining like terms and constants: how many terms now?

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?

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.