cost = 2*3.07+10.36
cost = 6.14+10.36
cost =16.50
20-16.50=change
3.50
She will get $3.50 change
Answer:
B. 60°
Step-by-step explanation:

I hope first term is 1.
Hope this is your question, if not I think you will, still be able to
find an answer of your question based on this solution.
The formula for general term of a geometric sequence is,

Where, first term: a_{1} =1 and common ratio: r = -4.
So, first step is to plug in the values of a1 and r in the above formula to get the rule of this geometric sequence. Hence,


So, the rule of the geometric sequence is
.
To find the seventh term, plug in n = 7 in the above rule. Therefore,

= 
= 4096
Hope this helps you!.