Solve. Provide answers in interval notation.x2 - 3x - 18 ? 0
A. (-?, -3] ? [6, ?)
B. [-3, 6]
C. (-?, -3]
D. [6, ?)
Answer: B
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Provide an appropriate response. A 14-foot ladder leans against a building. What is the angle formed between the ladder and the ground if the base of ladder is 3.4 feet away from the wall?
A. 13.7° B. 14.1° C. 76.3° D. 75.9°
Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 56, percent = 20
A. whole = 28 B. whole = 2800 C. whole = 11.2 D. whole = 280
Complete.797 mL = L
A. 7.97 B. 0.797 C. 797,000 D. 79,700
Solve the problem.If the value of a collection of 10-dollar bills is represented by v, and the number of bills by n, then 
Represent the value of 2, 6, and 10 10-dollar bills as ordered pairs in the form (n, v).
A. (2, 20), (6, 60), (11, 110) B. (2, 20), (7, 70), (10, 100) C. (2, 20), (6, 60), (10, 100) D. (3, 30), (6, 60), (10, 100)