Audrey and Lincoln work at a furniture store. Audrey is paid $225 per week plus
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Answer:
Step-by-step explanation:
Notice that the series: 1 - 3 + 9 - 27 +... clearly has powers of the factor 3 in its terms and it is also an alternate series (the terms alternate from positive to negative). The terms are positive for (even terms) , while the odd terms
are negative. (so most likely there should be a factor (-1) in the common ratio.
We can then represent it with the following summation expression:
given that each of its first four terms are:
The circumference of a circle is 
since the radius is half of the diameter we can substitute the diameter instead of using 2r. So we get 
The we can substitute the given diameter, which is 5 and multiply it by 
and get 
.