Answer:

Step-by-step explanation:
2/3 = 0.6 repeating
3/7 = 0.42857
Answer:
3750
Step-by-step explanation:
50*70=35005
5*50=250
Steps 4 and 5 are being used to get the equation in step 6.
Steps 5 and 7 are being used to get the equation in step 8.
Steps 8 and 6 are being used to get the equation in step 9.
In step 14, "similar argument" means to draw segment BD and follow the same logic in steps 3-12.