D 20 units
I know this because 7+7=14 and 3+3=6. Then 6+14=20.
Answer:

Step-by-step explanation:




.....<em>final answer.</em>
Answer:
to find the mean you must add all of the numbers in a data set together and then divide by how many numbers there are.
Answer:
4(x+2) = 4x + 8
Step-by-step explanation:
because if they are multiplied out it would be 4x+8 = 4x + 8 which means it is infinite because both sides are equal
Answer:
G) 16.6
Step-by-step explanation:
We can use the pythagoriam theroem to solve the problem


+ 49 = 324
= 275
a = 16.6