Simplify. Assume that variables can represent any real number.
A. 256
y2
B. 4
y2
C. 4xy2
D. 4
Answer: B
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Find the required inverse and locate on the number line.Find the additive inverse for - 
and graph on the number line. 
A. 
B. 
C. 
D. 
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.Sales at a local ice cream shop went up 20% in 5 years. If 18,000 ice cream cones were sold in the current year, find the number of ice cream cones sold 5 years ago. (Round to the nearest integer, if necessary.)
A. 90,000 ice cream cones B. 15,000 ice cream cones C. 14,400 ice cream cones D. 3600 ice cream cones
Provide an appropriate response.Playing a fair "shell game," the probability of winning the game should be given by p = 
. One person plays the game 50 times but only wins 7 times. Using n = 50, approximate P(X = 7) by using the normal approximation.
Fill in the blank(s) with the appropriate word(s).
Write as a number.Round 388 to tens.
A. 400 B. 390 C. 380 D. 490