Christopher spent a total of $52.50 at a bookstore. He purchased a calendar for $9 and three books that each cost the same amount. Which of the following equations could be used to find b, the amount of each book he purchased?

step-by-step explanation:

answer4 to the second power is 16

and 4 to the third power is 64,

other answer is correct. i had used the radius of the radius somehow. a website:

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

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