please i need help they didn’t let us watch a video and it’s a new thing so i have no idea how to do it

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64

0lz try yourself sorry for not answering

16 would be your answer