Solve the problem.A croissant, a cup of coffee, and a fruit bowl from Kelley's Coffee Cart cost a total of $5.50, and a croissant costs twice as much as a cup of coffee. Kelley posts a notice announcing that, effective next week, the price of a croissant will go up 10% and the price of coffee will go up 10%. After the increase, the total price of the purchase will be $5.73. Find the cost of each item before the increase.
A. A fruit bowl costs $3.25, a croissant costs $1.65, and a cup of coffee costs $0.83.
B.
| A fruit bowl costs $3.25, a croissant costs $1.50, and a cup of coffee costs $0.75. |
C. A fruit bowl costs $3.25, a croissant costs $0.83, and a cup of coffee costs $1.65.
D. The prices cannot be determined from the given information.
Answer: B
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The magnitude of a star is a measure of its brightness, and it is related to the relative intensity of light reaching Earth from the star. The relationship is
Magnitude 
Relative intensity).
If relative intensity is divided by 100, how is magnitude affected?
?
A. Magnitude is decreased by 2. B. Magnitude is increased by 5. C. Magnitude is increased by 2. D. Magnitude is decreased by 5.
Use an Euler diagram to determine whether the argument is valid or invalid.
is less than 14.7 is less than 14. Therefore, 
is less than 7.
A. valid B. invalid
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