Solve.
= 
A. 
B. 4
C. 
D. 15
Answer: D
Mathematics
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Provide a proper response.Give an example of a rational number that is a natural number.
What will be an ideal response?
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Use both properties of equality to solve the equation.7n - 8 = 48
A. 53 B. 8 C. 49 D. 14
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Solve the problem.Decide whether or not the points are the vertices of a rectangle.(-10, -4), (-1, -18), (13, -9), (4, 5)
A. No B. Yes
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Solve the problem.After being struck with a hammer, a gong vibrates 21 vibrations in the first second and in each second thereafter makes 
as many vibrations as in the previous second. Find how many vibrations the gong makes before it stops vibrating.
A. 28 vibrations B. 23 vibrations C. 94 vibrations D. 84 vibrations
Mathematics