Question

She does sit-ups.The table shows how long it takes her to do different numbers of sit-ups.

# of Sit-Ups | 10. | 30. |. 50. |. 200 |
Minutes. |. 2. |. 6. |. 10. |. 40 |
How long do you predict it will take her to do 120 sit-ups?

14 years ago