Answer: 8a^2 + 2c^2 - 2c
Step-by-step explanation: It is a simple addition between 6a^2+2a^2. The other terms remain the same.
Answer:
21
Step-by-step explanation:
3 times 7 equals 21 and you cant make 21 with 6
(please mark me brainliest if you get it correct)
Answer:

Step-by-step explanation:

The best estimate of r is 0.
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