Which operation should be performed first according to the order of operations?

21 – 5 + 24 ÷ 3 + 90 • 4

a.
21 – 5

b.
5 + 24

c.
24 ÷ 3

d.
90 • 4

Me. i need an answer asap. , you! select the correct answer from each drop-down menu.simplify the given polynomial and use it to complete the statement.the polynomial simplifies to an expression that is a blank with a blank degree of blank .

Need solving this second acceleration problem.

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