What is the value of b?

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

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.