Math written response question, me im in a rush you so much will : ) < 3

An unknown number of kids and buses are getting assigned. when assigning 4 kids to each bus, there are 2 kids that aren't placed in a bus. when assigning 8 kids to each bus, there are 2 empty buses. how many total kids are there?

Can someone me out here number 4 plz

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct