Fill in the blank with one of the words or phrases listed below.
A fraction whose numerator or denominator or both numerator and denominator contain fractions is called a(n) 
.
A. proper fraction
B. improper fraction
C. complex fraction
D. mixed number
Answer: C
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Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 1
B. 
C. 
D. 
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 = 4y
A. 4 sin2 ? = r cos ? B. 4 cos2 ? = r sin ? C. r sin2 ? = 4 cos ? D. r cos2 ? = 4 sin ?
Solve the problem.Michael's bank contains only nickels, dimes, and quarters. There are 69 coins in all, valued at $5.90. The number of nickels is 7 short of being three times the sum of the number of dimes and quarters together. How many dimes are in the bank?
A. 9 B. 50 C. 14 D. 10
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.16 is 1% of what number?
A. 16,000 B. 16 C. 160 D. 1600