4.2260×10^6 to standard notation

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.