Answer:
The combined value of the two cards is
.
Explanation:
The exponential growth function is defined as

Where, P₀ is initial value, r is growth rate and x is number of years.
The initial value of pitcher's card is $44 and the value of card is expected to increase by 3% per year. The value of pitcher's card after x years is


The initial value of catcher's card is $38 and the value of card is expected to increase by 3% per year. The value of catcher's card after x years is


The combined value of two cards is defined as




Therefore, the combined value of the two cards is
.