There are many strategies that can be used it really depends on what kind of questions you're answering.
Answer:
63 because if 1/3 of the club is gone then we need to multiply 21 times 21 to find the total. Which is 63.
Answer:
Step-by-step explanation:
4.30/40=$0.1075
Hope this helps :)
Answer: 439.82
Step-by-step explanation:
C=2πr=2·π·70≈439.82297