Answer: 4 dozen cookies and 1 peach tart
Step-by-step explanation:
Whitney can make:
4 dozen cookies or 2 peach tarts in 2 hours
Amy can make:
7 dozen cookies or 1 peach tart in 2 hours
Here, we assume that there is only 2 hours of production
Cookies:
If Whitney specialize in cookies and there is no production of tart but only the production of cookies by Whitney, then,
Total production of cookies = 4 dozen cookies
Tart:
If Amy specialize in peach tart and there is no production of cookies but only the production of peach tart by Amy, then,
Total production of peach tart = 1 peach tart