Answer:

Step-by-step explanation:
In the geometric series:

The nth term of the geometric sequence can be calculated using formula

In your case, n = 10, then

Answer:
9a+6b
Step-by-step explanation:
4a+7b+5a-b
First figure out the a's 4a + 5a = 9a
Then do b's (Remember, if there is no number by the letter then it is 1)
7b - 1b = 6b
So for this to be simplified the answer is 9a+6b
Answer:
Probably a bit late but its A the first one ;P
Step-by-step explanation:
Answer: 20
Step-by-step explanation:
2^2=4
5*2=10
2^2 and 5 would be multiplied
This is what I got I hope it helps