Answer:
2πr is the formula to calculate
Step-by-step explanation:
Answer:
question 1: the lower left hand graph represents that equation.
question 2: a+b = 180°
question 3: a = b
question 4: a + b = 90°
question 5: a + b = 90°
Well... hmmm so.. for 500 bucks you only pay a rate of say "r", and it comes down to only 28cents, or $0.28.
If 500 is say the 100%, what percentage is 0.28?

now, we're assuming the company is charging and APR, so you pay that at the end of the year. We're also assuming the year is only 360 days.
so, if you borrow 1959 on simple interest for 251 days out of 360 days, how much are you repaying?

and surely you can do that one... which is just 1959 and a few pennies.
Answer:
Octagon
Step-by-step explanation:
Sum of interior angles = 3*360 = 1080
sum of interior angles, is also, s = (n-2)180
From that,
n-2)180 = 1080
n-2 = 1080/180
n = 6 + 2
n = 8
Therefore, the figure is an 8 sided polygon or an octagon