Pls help asap i’m taking a unit test!

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?