Solve using the percentage proportion.What percent of 55 is 44?
A. 75%
B. 80%
C. 125%
D. 120%
Answer: B
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Solve the problem. A reasonable quadratic model for the population of a certain city is found to be 
where B(t) is the population (in thousands) of the city in the year that is t years since 2012. A reasonable quadratic model for the number of residents of that city who were born outside the United States is 
where F(t) is the number (in thousands) of foreign-born residents of the city in the year that is t years since 2012. Let P(t) be percentage of residents of the city who were born outside the United States in the year that is t years since 2012. An
equation for P is P(t) = 
. Use P to predict when the city will have 15.3% foreign-born residents.
A. 2030
B. 2028
C. 2029
D. 2031
Fill in the blank with one of the words or phrases listed below. Not all choices will be used.
= 
is an example of a(n) 
.
A. proportion B. complex fraction C. reciprocals D. least common denominator
Solve the equation.
= 
- 
A. 
B. {1}
C. {27}
D. {0}
Write the ratio in lowest terms in order to decide whether the proportion is true or false.
= 
A. True B. False