a very fast way to do it:
Trivially 8.8*5>10, so the power of 10 is 6+2+1 = 9.
Therefore, the answer is 
D would be the correct answer
C=6.28cm
because C=2pi•r
so in this case C=2•3.14•1
which is C=2•3.14
and that leads to C=6.28cm
hope this helped
Answer:
100+44
Step-by-step explanation:
Even though you dont have the statements, she flipped the coin and 60% of the time the result of the coin flip was tails, 40% of the flips were heads.
Even though she got tails 20% more than heads, she still has a 50-50% probability of getting heads or tails.
Heads to tails rate was 4:6