Answer:
B, pi
Step-by-step explanation:
The sine wave shown above has two waves until it reaches 2 pi, making the period of the sine graph 2pi divided by the two waves, making the answer pi.
The answer to your question is D. to make information easily available
I think it’s either A or C
6,000,000,000+400,000,000+30,000,000+5,000,000+900,000,20,000+100+70+8