Alyssa spent $35 to purchase 12 chickens. She bought two diffrent types of chickens. Americana chickens cost $3.75 each and Delaware chickens cost $2.50 each. Write a system of equations that can be used to determine the number of Americana chicken ,A, and the number of Delaware chickens ,D, she purchased.

Determine algebraically how many of each type of chicken ally purchased.

Each Americana chicken lays 2 eggs per day and each Delaware chicken lays 1 egg per day. Alyssa only sells eggs by the full dozen for $2.50. Determine how much money she expects to take in at the end of the first week with her 12 chickens.