Use the empirical probability formula to solve the exercise.Three coins are tossed 80 times and the number of heads is observed.
What is the probability that at most two heads occur?
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem. Round dollar amounts to the nearest cent.Find the average inventory at retail.
A. $20,193.00 B. $21,272.00 C. $60,579.00 D. $30,289.50
Perform the indicated operations.( 4x2y - 3xy2 + 9xy - 4) + ( -7x2y - 2xy2 + 4xy + 9)
A. 3x2y + 5xy2 + 13xy + 5 B. -3x2y - 5xy2 + 13xy + 5 C. 11x2y - 10xy2 + 14xy + 13 D. -2x2y2 - 14
Provide an appropriate response.A woman makes house payments of $4200 at the beginning of every quarter. If the woman wishes to pay 
worth of payments in advance, how much should she pay provided that the interest rate is 5.4% compounded quarterly?
Fill in the blank(s) with the appropriate word(s).
Solve the inequality. Express your answer using interval notation.-2x - 2 ? -3x + 4
A. (2, ?)
B. [6, ?)
C. (-?, 6]
D. (-?, 6)