What is the factored form of a2 – 121?

answer choices available:
a. (a - 121)(a-1)
b. (a - 11)(a + 11)
c. (a + 11)(a + 11)
d. (a - 121)(a + 1)

as always, for your .

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?