Evaluate the expression.
A. 1
B. 21
C. 0!
D. 7
Answer: B
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Solve the problem.On the September 20 billing date, Emilio had a balance due of $573.56 on his credit card. During the next month, Emilio charged an additional $357.87 and makes a payment of $433. The interest rate on the card is 1.9% per month. Using the previous balance method, find the finance charge on October 20.
A. $6.80 B. $9.47 C. $2.67 D. $10.90
Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 29, whole = 29
A. percent = 200% B. percent = 0% C. percent = 1% D. percent = 100%
Solve the problem.A comet follows the hyperbolic path described by 
- 
= 1, where x and y are in millions. If the sun is the focus of the path, how close to the sun is the vertex of the path? 
A. 1.2 million B. 19 million C. 4.4 million D. 3.2 million
Solve the equation.-7x + 2 + 5x = -2x + 7
A. {-2} B. all real numbers C. {5} D. no solution