Tell whether the expression is a monomial. If it is, name the variable(s) and coefficient, and give the degree of the monomial.
A. Monomial; variable x; coefficient 19; degree 0
B. Monomial; variable x; coefficient 19; degree 1
C. Monomial; variable x; coefficient 19; degree -1
D. Not a monomial
Answer: D
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Provide an appropriate response.A student wanted to estimate 21.5 × 0.0079 by first rounding each number. He solved the problem as follows.21.5 × 0.0079 is approximately equal to 
which is equal to 0.016. So he estimated the answer as 0.016. Do you agree with the answer? If not, explain where the student went wrong and give the correct answer.
What will be an ideal response?
Solve.e0.03t + 1 = 6
(Round your answer to three decimal places).
A. 1.609 B. 53.648 C. 0.048 D. 59.725
Write the first five terms of the geometric sequence.a1 = 6; r = 3
A. 6, 9, 12, 15, 18 B. 6, 18, 54, 162, 486 C. 3, 18, 108, 648, 3888 D. 18, 54, 162, 486, 1458
Simplify by factoring.
A. x8
B. x9
C. x8
D. x7