Tell whether the expression is a polynomial. If it is, give its degree.4z3 + z
A. Polynomial; degree 1
B. Polynomial; degree 5
C. Polynomial; degree 4
D. Not a polynomial
Answer: C
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Find the limit.
A. 9 B. 27 C. 3 D. Does not exist
Factor.x2 + 24x + 144
A. (x + 12)(x - 12) B. (x + 12)2 C. (x - 12)2 D. Not factorable
Solve the problem.A train ticket in a certain city is 
. People who use the train also have the option of purchasing a frequent rider pass for 
each month. With the pass, each ticket costs only
. Determine the number of times in a month the train must be used so that the total monthly cost without the pass is the same as the total monthly cost with the pass.
A. 22 times B. 21 times C. 23 times D. 24 times
Find the first term and the common ratio of the geometric sequence.an = 3
n
A. a1 = - 
, r = 
B. a1 = - 
, r = 
n
C. a1 = 
, r = 
D. a1 = 
, r = 3