D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
Step 1 (3* (2a+5)) + 5 *(a-2)
Step 2 <span>3 • (2a + 5) + 5 • (a - 2)
</span>Step 3 final result and your anwser
11a+5
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Answer:
Yes, it is arithmetic with the common difference 2.
Step-by-step explanation:
10-8=2
8-6=2
6-4=2
etc.
Answer:
B
Step-by-step explanation:
