Simplify the algebraic expression, or state that the expression cannot be simplified.3x9 + 8x3
A. 11x9
B. cannot be simplified
C. 11x18
D. 99x
Answer: B
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Solve the problem using inductive reasoning.Write the next three "triangular" figurate numbers.
Fill in the blank(s) with the appropriate word(s).
Graph the ellipse. Label the intercepts.50x2 + y2 = 100
A. (-
, 0), (
, 0), (0, -
), (0, 
)
B. (-2, 0), (2, 0), (0, -10), (0, 10)
C. (-2, 0), (2, 0), (0, -
), (0, 
)
D. (-
, 0), (
, 0), (0, -10), (0, 10)
Provide an appropriate response.A ball rebounds 
of its previous height after each bounce. If the ball is tossed up to a height of 16 feet, how far has it traveled in the air when it hits the ground for the fifteenth time?
Fill in the blank(s) with the appropriate word(s).
Write the number as a decimal.There are 2.599 × 104 miles of highways, roads, and streets in a certain state.
A. 259,900 B. 25,990 C. 2,599 D. 2,599,000