Answer:
$6.75
Explanation:
In order to calculate the cost of the baseball card pack today, taking into account 3% continuous compounding inflation over 10 years, we can use the formula for continuously compounded interest:

Where:
- A is the final amount (the cost today)
- P is the initial amount (the cost 10 years ago)
- r is the annual inflation rate (3% or 0.03 as a decimal)
- t is the number of years (10 years)
In this case:
Substitute these values into the formula and simplify:

0ur friend paid approximately $6.75 for the pack of baseball cards today.