Solve.There are n people in a room. The number N of possible handshakes by all the people in the room is given by the function N(n) = 
. For what number n of people is 28 ? N ? 190 ?
A. {n|9 ? n ? 19}
B. {n|7 ? n ? 22}
C. {n|8 ? n ? 20}
D. {n|10 ? n ? 19}
Answer: C
Mathematics
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- 4 = 1
A. -11, -1 B. 11, 1 C. 11 D. No solution
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Write the statement in algebraic form.33 less than a number
A. n - 33 B. 33n C. n + 33 D. 33 - n
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Solve the problem.A flower garden extends from the corner of a house in a three-quarter circle. The radius of the flower bed is 2.7 ft. If the edging material costs $0.36 per linear foot, what is the cost of edging the entire bed (not including the portion against the house). Round your answer to the nearest cent.
A. $2.29 B. $9.16 C. $6.10 D. $4.58
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Estimate the quotient by first approximating the dividend and divisor with numbers that can be divided more easily. 
A. 8 B. 12 C. 99 D. 13
Mathematics