Giving 15 points, me.
combine the like terms to simplify this expression. 16x + 12y^ 2 + 4a + 12x
a.28x + 12y^2 +4a
b.12y^2 + 4x + 4a
c.44 + axy^2
d. y^2 +ax + 44
i am so confused, give me the answer but also explain why.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

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.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2