Answer:
46
Step-by-step explanation:
92 + 42 + 46=180
Answer:
The answer to your question is below
Step-by-step explanation:
Process
1.- Convert the lengths to the same denominator (12)
Ridge trail 3 /4 mile = 3(3) / 12 = 9/12
Valley trail 7/12 mile = = 7/12
Crystal brook 2/3 mile = 4(2) / 12 = 8/12
2.- Order from shortest to longest
a) Valley trail
b) Crystal brook
c) Ridge trail
The common difference on the sequence is -3 and the number of books will be 21.
<h3>How to illustrate the sequence?</h3>
The formula that can be used to calculate the number of books will be:
= a + (n - 1)d
= 57 + (13 - 1)-
= 57 + (12 × -3)
= 57 - 36
= 21
Also, from the information given, each row has three fewer books than the row below it. Therefore, the common difference is -3.
Learn more about sequence on:
brainly.com/question/1275192
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The answer is A
hope this helps
