Subtract the fractions. Write the answer in lowest terms.
A. 
B. 
C. 
D. 
Answer: A
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Solve.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: $16; child's ticket: $10 B. adult's ticket: $18; child's ticket: $12 C. adult's ticket: $17; child's ticket: $11 D. adult's ticket: $19; child's ticket: $13
For the compound inequality, give the solution set in both interval and graph forms.4x - 10 ? 18 and 2x - 1 ? 13
A. (-?, 7)
B. [7, ?)
C. (7, ?)
D. {7}
Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z.5x + 2y + z =-112x - 3y - z=177x - y=12
A. no solution B. (-2, 0, -1) C. (1, -5, 0) D. (0, -6, 1)
Determine whether the function is one-to-one.f(x) = 
A. One-to-one B. Not one-to-one