Whose weight is best measured in ounces

Which of the binomials below is a factor of this trinominal? x^2-13+30

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers

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.