Susan can swim 105 meters in 70 seconds. At this rate, how far can she swim in 30 seconds? A. 20 meters B. 35 meters C. 45 meters D. 245 meters​

Respuesta :

Answer:

C. 45

Step-by-step explanation:

You can use estimation 30 is roughly half of 70. 45 is roughly half of 105.