Answer:
No
Step-by-step explanation:
When Anna starts, she does a sit-up every 22 seconds. As she gets tired, each sit-up takes longer and longer to do. It would mean that the number of sit ups are not proportional to the time. If any thing is proportional, the rate at which the quantity increases or decreases should be constant. But in this the rate is not constant. Also, when she gets tired, sit-up takes longer time
