Multiply.(x + 5)(5x + 3)(5x - 3)
A. 25x3 - 125x2 - 9x - 45
B. 25x3 + 125x2 - 9x - 45
C. 25x3 + 125x2 + 9x - 45
D. 25x3 - 45
Answer: B
Mathematics
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Divide.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Simplify. Assume that all variables represent positive numbers.
A. 
B. 5
C. 6
D. 6
Mathematics
Solve the problem.A man earned $2500 the first year he worked. If he received a raise of $500 at the end of each year, what was his salary during the 15th year?
A. None of these B. $7000 C. $10,000 D. $9500
Mathematics
Find the circle's circumference or area, as requested. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.Find the area.
A. 12.2 in.2 B. 24.5 in.2 C. 11.9 in.2 D. 47.8 in.2
Mathematics