A=3.14r^2
A=3.14 x 10^2
A=3.14x100
A=314
314cm is your answer
I’m pretty sure it’s b but idk 100% sorry if it’s wrong
I believe it is "Because I don't drive." The person writing the sentence never started it off properly.
11km = 5h
1km = 5h divide by 11km = 0.45h
16.5km = 0.45 x 16.5 = 7.42 h
Answer:

Step-by-step explanation:
Given


Required
Find x such that: 
This gives:

Collect like terms


Expand

Factorize

Factor out x - 1

Solve:
