12 liters to quarts rounded to nearest hundredth

Answer question above and explain each step : )

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)