Solve the problem. Use 3.14 for ?.Find the cost to asphalt a circular racetrack if asphalt costs $70 per 100 ft2. (Round to the nearest dollar.) r = 90 ft R = 120 ft 
A. $31,651
B. $13,847
C. $7913
D. $17,804
Answer: B
Mathematics
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Classify the polynomial as constant, linear, quadratic, cubic, or quartic, and determine the leading term, the leading coefficient, and the degree of the polynomial.f(x) = 5 - x
A. Constant; -x; -1; 0 B. Linear; -x; -1; 1 C. Constant; 5; 5; 0 D. Linear; 5; 5; 1
Mathematics
Find the absolute value.
A. -7.19 B. 7.19 C. ± 7.19 D. 0
Mathematics
Identify each number as a proper fraction, an improper fraction, a mixed number, or a complex fraction.
A. Proper fraction B. Complex fraction C. Improper fraction D. Mixed number
Mathematics
Find the length of the unknown side of the right triangle with legs a and b and hypotenuse c. Round to three decimal places, if necessary.a = 15, c = 39
A. b = 27 B. b = 36 C. b = 42 D. b = 37
Mathematics