Which expression is equivalent to the expression below? 7x+5y+x+x+x+x 7x+5y+x+x+x+x

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?

Astudent simplified a rational expression as shown.

Which value is not a solution of 8x^3 – 1 = 0