Factor this 5rst-15ab + 7cd

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

On friday, there were x students at the baseball game. on monday, there were half as many students at the game as there were on friday. on wednesday, there were 32 fewer students at the game as there were on friday. which expression could represent the total number of tickets sold for all 3 games?

The graph represents f(x)=[x]+3. what is f(-2.2)?