Answer:
simple interest
Step-by-step explanation:
SI = principal x rate x time
Answer: 3.14285714.....
<u>Step-by-step explanation:</u>
pi is 

Thiis is a non-terminating and non-repeating decimal.
Answer:
24
Step-by-step explanation:
6.21+6.21=5.7+5.7=23.82
23.82 rounds to 24
(perimeter is all of the sides combined)