Perform the indicated operations. Express the answer as a single polynomial in standard form.-3x5(5x5 - 5x3 + 7)
A. -15x10 - 5x3 + 7
B. -15x10 + 15x8 - 21x5
C. -15x10 + 15x8
D. -15x5 + 15x3 - 21
Answer: B
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Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student has at least 2 siblings?
A. 0.79 B. 0.42 C. 0.58 D. 0.21
Graph the function, and state its domain and range.f(x) = x3 - 4
A. Domain: (-?, ?); Range: (-?, ?)
B. Domain: (-?, ?); Range: (-?, ?)
C. Domain: (-?, ?); Range: (-?, ?)
D. Domain: (-?, ?); Range: (-?, ?)
Solve.
x = - 
A. 
B. 
C. - 
D. - 
Solve the problem.From April through December, the stock price of QRS Company had a roller coaster ride. The chart below indicates the price of the stock at the beginning of each month during that period. Find the monthly average rate of change in price between June and September.Stock Price of QRS Company from April through December
AprMayJunJulAugSepOctNovDecMonth
A. -$8.00 per month B. $12.00 per month C. $8.00 per month D. -$12.00 per month