Amy's salary is 40,000 in her first year on the job with a 2,000 rise every year there for

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.