I need help math question

Select the correct answer what is the 10th term of the geometric sequence 3,6, 12, 24,48 a. 512 b. 3,072 c. 768 d. 1,536

Which of the following numbers is closest to the mean of this distribution? a. 5 b. 3 c. 6 d. 7 e. 4

Robbie goes to the supermarket to buy a bag of chips he brings $20 to the store and pays 3.$79 for the chips . on the way home he finds 1.35 dollars in coins on the sidewalk how much money does robbie have when he gets home