The circumference of a circle of radius
is

So, in your case, the circumference is

The circumference is actually the length of the "perimeter", so the answer to questions 1 and 2 looks the same actually
Answer:
the last option
Step-by-step explanation:
can you show the rest of the last option? if there isn't anything cutoff, then the last option would be correct. also, you can use desmos .com next time to help you graph
Answer:
$31.00
Step-by-step explanation:
that is the procedure above
80-40/5-0=40/5=8 through the slope formula