Use substitution to solve the system of equations.x + y = -1x - y = 15
A. 
B. 
C. 
D. 
Answer: B
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With the given set of components, find R and ?.Rx = -40.6, Ry = -28.4
A. R = 49.5, ? = 215° B. R = 8.3, ? = 215° C. R = 49.5, ? = 35° D. R = 8.3, ? = 35°
Find the first four terms of the indicated expansion.(x - 2)17
A. x17 + 34x16 + 544x15 - 10,880x14 + ... B. x17 - 34x16 + 544x15 + 5440x14 + ... C. x17 - 34x16 + 544x15 - 10,880x14 + ... D. x17 - 34x16 + 544x15 - 5440x14 + ...
Solve the problem.A truck rental company charges $39 plus $0.07 per mile to rent a moving truck for a day. If x represents the number of miles driven and f(x) represents the total cost to rent the truck for a day, a linear function that models the situation is 
What is the cost of renting the truck if it is driven 220 miles?
A. $8580.07 B. $23.60 C. $40.54 D. $54.40
Evaluate the expression without using a calculator.log7
A. 1
B. 
C. 
D. 7