A triangle PQR has its vertices at P (7, 6), Q (-1, -2), and R (-7, 4). What is the perimeter of the triangle PQR?

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

What is the area of the shaded sector?