Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The following list of digits was taken from a table of random numbers. We will let them represent 50 tosses of 5 fair coins. The digits 0-4 represent an H and the digits 5-9 represent a T. Use this simulation to estimate the probability of getting two heads on a toss of five coins.
A. 
B. 
C. 
D. 
Find the sum.
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A. -5461 B. 5459 C. 3261 D. -3277
Provide an appropriate response.Perform the operation and simplify your answer: 
Fill in the blank(s) with the appropriate word(s).
Use a system of linear equations to solve the problem.Devon purchased tickets to an air show for 8 adults and 2 children. The total cost was 
. The cost of a child's ticket was 
less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
A. adult's ticket: $15; child's ticket: $11 B. adult's ticket: $12; child's ticket: $8 C. adult's ticket: $14; child's ticket: $10 D. adult's ticket: $13; child's ticket: $9