If a can do a piece of work alone in 7 days and b can do it alone in 4 days, how long will it take the two working together to complete the job?

Algebra 1: unit 6 part 2 of test a) the table shows a linear function. x 0 1 2 3 5 13 21 29 37 45 53 (a) determine the difference of outputs of any two inputs that are 1 unit apart. show your work. (b) determine the difference of outputs of any two inputs that are 2 units apart. show your work.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.