Can someone pls explain and do all of these

What situation is an example of an observational study

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

The cost of turkey is directly proportional to its weight. if a 12-pount turkey costs $27, how much does a 13-pound turkey cost? a. $33.75 b. $36.00 c. $31.00 d. $32.50