Abaseball card is originally worth 3$. it increase by 7% every year while the player is still active. after the player retires it increases 10% every year. if a player remains active dor 7 years, how mich is the baseball card worth after 20 years?

Step-by-step explanation:

we know that

The exponential function while the player is still active is equal to

where

y ----> is the value of the baseball card

x ----> the time in years

Find the value of y for x=7 years (7 years still active)

After 20 years

x=20-7=13 years (13 years retired player)

The initial value is

The new equation is equal to

substitute

x=13 years