1.add (5x4 + 3x3 -x2 +16x)+(2x3 -3x2 -10x4 +x -1) ihave tried every possible correct answer and none of them seem to be right on any of these 3 questions2.subtract the following polynomials (5x4 + 3x3 -x2 +16x) - (2x3 -3x2 -10x4 +x -1) 3.multiply (5x4 + 3x3 -x2 +16x)(x5+2x-1)

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence. then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Ineed someone to me answer my question i have to have this done and knocked out

Graham’s monthly bank statement showed the following deposits and withdrawals. -$25.20, $42.75, -$22.04, -$18.50, $74.11. part a if grahams baldness in the account was $37.86 at the beginning of the month,! 27/4! 2// the account balance at the end of the month? ? plz i will give you 100 points