Solve using the addition principle and/or the multiplication principle.
k = 
A. 10
B. 3
C. 9
D. 4
Answer: B
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The graphing calculator screens show a system and the point of intersection. Choose the screen which best represents the given system.2x - y = 03x + y = 0
A. 
B. 
C. 
D. 
Solve the problem.Vicki's car rental company charges $20 per day plus $0.25 per mile to rent a car. Joshua's rental company charges $26 per day plus $0.20 per mile. The total daily cost, y, in dollars, of renting the car if x miles are driven can be modeled by the linear system: y = 0.25x + 20 Vicki's y = 0.20x + 26 Joshua's Graph the system. What is the x-coordinate of the intersection point of the graphs? Describe what this x-coordinate means in practical terms. 
A. 50; Both companies charge the same amount for 50 miles driven. B. 100; Both companies charge the same amount for 100 miles driven. C. 120; Both companies charge the same amount for 120 miles driven. D. 55; Both companies charge the same amount for 55 miles driven.
Simplify. Write your answer in the form a + bi, where a and b are real numbers.(7 - 3i) + (1 + 6i)
A. -8 - 3i B. 8 - 3i C. -8 + 3i D. 8 + 3i
Solve.16x2 + 64y2 = 10248y + 4x = 32
A. (0, -8), (0, -4) B. (0, 8), (4, 0) C. (0, 4), (8,0) D. (0, -4), (-8, 0)