Determine the term containing y^5 in the expansion of (x-3y)^8

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30