2(x+4)=2(-8-x)-2x what the variables on both sides

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Which expression is not a polynomial?

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.