I think the trick is to add the two middle terms together. (And the 2 end terms).
8 - 12x
The variable is x. The coefficient is - 12.
8 is a constant.
The coefficient always goes with a variable.
3x^2 + 2x + 5
Nothing can be combined. The leading coefficient is 3 (which goes with the greatest power of the variable x^2 in this case) and the other coefficient is 2. 5 is a constant.
5*23
Note 23 = 20 + 3
5*23 = 5*(20 + 3) and by distributive property
5*23 = 5*20 + 5*3 = 100 + 15 = 115
= 115
119 * .09 = 10.71
119+10.71= 129.71
129.71 * .22 = 28.54
129.71+28.54= 158.25
the answer closest to this is $156, so that is your answer.
The answer is c. Add all of the numbers on the right and then devide by five. Thd answer is C.