Simply the expression given below (3x^3+4x^2+4x-12)+(-5x^3+9x^2-9x+20 )

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Can someone me with this problem . show your work .

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.