Answer:

Step-by-step explanation:
Open the brackets.



Answer:
a. 200°
Step-by-step explanation:

Answer: (-1,2)
Step-by-step explanation:
Complete question is: Each bicycle have speed 10 mi/h and fly flies at 21 mi/h. How far the fly flies?
Answer:
47.25 mi
Step-by-step explanation:
The relative velocity of the bicycles is 10+10 = 20 mi/h
Time in which the two bicycles meet:

Distance covered by fly:

Can't answer without a picture