Answer:
10x+4b+3
Step-by-step explanation:
x+x+x+x+x+x+x+x+x+x+b+b+b+b+3
There are 10 x
4 b
and one number
enjooooooooyyyyyyyyyyyyyyyy
Answer: -13, -17, -21
Explanation: Subtract 4 from each term. Do this for 3 terms
The answer is the last one