The following table shows the expressions that represent the sales of 4 companies:

Company A B C D
Sales 340(1.03)x 275(0.89)x 180(1.23)x 260(1.90)x

Rank the company sales by smallest to largest percent of increase and select the correct answer below.

1. A, B, C, D
2. A, D, B, C
3. B, A, C, D
4. C, B, D, A

i think it's 4, is that the correct answer?

I would go with the third choice.

To rank the company sales by the smallest to largest percent of increase, we need to calculate the percent increase for each company by comparing the sales expressions given.

For Company A:
The sales expression is 340(1.03)x. The coefficient in front of x (1.03) represents the percent increase, which is 3%.

For Company B:
The sales expression is 275(0.89)x. The coefficient in front of x (0.89) represents the percent increase, which is a decrease of 11%.

For Company C:
The sales expression is 180(1.23)x. The coefficient in front of x (1.23) represents the percent increase, which is 23%.

For Company D:
The sales expression is 260(1.90)x. The coefficient in front of x (1.90) represents the percent increase, which is 90%.

Now, let's rank the companies from smallest to largest percent of increase:

2. A, D, B, C

Therefore, option 2 is the correct answer.