Solve the application by setting up a proportion. Write a sentence answering the question.On a test, Manuel answered incorrectly 70 questions or 35% of the questions. How many questions were on the test?
A. There were 2000 questions on the test.
B. There were 0.5 questions on the test.
C. There were 50 questions on the test.
D. There were 200 questions on the test.
Answer: D
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Solve the problem.The height of an object in feet above the ground 4 seconds after it is dropped from a height of 370 is given by the expression 
What is the height of the object?
A. -114 ft B. 626 ft C. 114 ft D. 242 ft
Find the least common denominator (LCD).
, 
A. (x - 6)(x + 1) B. (x + 2)(x - 6) C. (x + 2)(x - 6)(x + 1) D. (x - 2)(x + 6)(x + 1)
Solve the problem.The quadratic function 
models the median, or average, age, y, at which U.S. men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)
A. 1957, 23.2 years old B. 1954, 36 years old C. 1957, 50.2 years old D. 1936, 50.2 years old
Solve.Write the equivalent decimal and percent for 
.
A. 0.42; 0.0042% B. 0.042; 4.2% C. 0.0042; 0.42% D. 4.2; 0.042%