A farmer owns several dairy cows, some black, some brown. He finds that 4 black cows and 3 brown cows give the same amount of milk in 5 days as 3 black cows and 5 brown cows give in 4 days. Which gives more milk in a day, a black or brown cow? Show work/explain.

AND

CAn you come up with a rectangle whose sides are whole numbers and whose area is numerically equal to its perimeter? There are 2 solutions.

Area=

Perimeter=

THANKS!!!!