Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.
A. 80 mph
B. 20 mph
C. 50 mph
D. 40 mph
Answer: B
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Provide an appropriate response.Which of the following statements defines 
f(x) = -??I. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 - ? < x < x0 + ?.II. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 < x < x0 + ?.III. For every negative real number B there exists a corresponding ? > 0 such that f(x) < B whenever x0 - ? < x < x0.
A. II B. I C. III D. None
Read.Read the following metric micrometer.
Fill in the blank(s) with the appropriate word(s).
A point P(x, y) in rectangular coordinates is given. Determine the polar coordinates 
such that 
and 
(4, -4)
A. 
B. 
C. 
D. 
Determine the coefficient and degree of the monomial.
x
A. coefficient:
, degree: 2
B. coefficient: 4, degree: 1
C. coefficient: 1, degree: 
D. coefficient: 
, degree: 1