My uncle john has a farm. in his farm he has cows and chicken. he doesn't know how many cows and chicken he has .he dose know that he has 36 heads and 104 legs on the cows and chicken. how many of the animals are chicken and cows

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell