Answer: 13
Step-by-step explanation:
First, you add them all up which is 8+10+12+15+15+18 which is 78. Then, you divide by how much number there is which here is 6. So, I divided 78 by 6 and got 13.
Answer:
183
Step-by-step explanation:
168+2^3+3^3-20=
Exponents
168+8+27-20
Addition
203-20
Subtraction
183
183 is the answer.
Answer:

Step-by-step explanation:
From the diagram:

Now Angle 1 and Angle 2 are on a straight line, therefore:

Answer:
The first one
Step-by-step explanation:
In this question, we are trying to find X, so can solve this by back-solving. multiply the choices by the A until they equal B. If you do it for the first one then you should gett B.