180-145 equals 35. missing angle=35 degreees
Answer:
B
Step-by-step explanation:
You are combining like terms.
1.) find all of the #x³ and there is only one and that is -x³ so that limits the problem to B or D.
2.) now you find all of the #x² and there are three of them being 10x², -x², and 4x². Now that you have identified them you will add them together to get a sum of 13x²
you don't have to do anymore of the question because D does not have 13x² so it is B.
Answer:
20
Step-by-step explanation:
I think its 9 because 9 times 2 is 18 9 times 6 is 54 and 9 times 8 is 72