If she would have waited a day she would have saved D) $64.43 more. This is because the original sale price comes to $322.15 and then we find the answer by taking this number and multiplying it by the additional sale and get $64.43.
The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Step-by-step explanation:
The first term and common difference are used to induce a formula for the arithmetic sequence
The explicit formula for a geometric sequence is:

Given
First term = a1 = 1.7
Common Difference = d = 0.5
putting the values in the formula

The formula for a sequence with first term = 1.7 and common difference 0.5 is: 
Keywords: Arithmetic sequence, Common difference
Learn more about arithmetic sequence at:
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A is correct
C is correct
E is correct
GOING ACROSS
First: 2/4
Second: 5/6
Third: 5/6
Fourth: 2/4
Fifth: other