If you work out the difference between 2 and 7 you will get 4 so you add 4 each time.
3=12
4=16
5=20
The common difference is -1/4.
You can figure this out by subtracting each value in the sequence by the value right before it. Ex. 1/4 - 1/2 = -1/4
Answer: D. exponential growth
Step-by-step explanation:
Three multiplied by the sum of x and seven add ten to the resulting product