7th grade math homework help please!!?

13. A coin is tossed 60 times. It landed on heads 21 times. Find the experimental probability of getting heads.


a)7/27


b)7/13


c)7/20


d)7/13





14. Pam has taken sixteen science quizzes this year. She earned an A on six quizzes and a B on ten quizzes. What is the probability that she will score a B on her next math quiz?


a)63%


b)38%


c)20%


d)80%





16. Tamara was practicing her foul shots before the basketball game. She made 18 out of 21. What is the experimental probability of making her next basket?


a)86%


b)18%


c)14%


d)75%





17. Carrie's dog, Copa, loves to greet her at the door when she comes home. Sometimes Copa brings a toy for Carrie. Out of the last 5 days, Copa has greeted her at the door with a toy 2 times. What is the experimental probability that Copa will have a toy when she comes to the door today?


a)20%


b)40%


c)60%


d)80%

7th grade math homework help please!!?
18. 48/300 = 16/100 = 16%





14. B/(A+B) = 10/16 = 0.625 ≅ 63%





17. 2/5 = 0.40 = 40%





13. 21/60 = 7/20





16. 18/21 = 0.8571429 ≅ 86%
Reply:caabc
Reply:18. c 48/300 = .16 same as 4/25 = .16





/ = divide