Factor by grouping. Assume any variable exponents represent whole numbers.x2 + 3x - 8x - 24
A. (x - 3)(x - 8)
B. (x + 3)(x - 8)
C. (x - 3)(x + 8)
D. (x + 3)(x + 8)
Answer: B
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
When is the body moving backward?
A. 7 < t < 10 B. 4 < t < 7 C. 0 < t < 4 D. 0 < t < 2, 6 < t < 7
Graph the negative number on a number line.- 
A. 
B. 
C. 
D. 
Solve.Amy teaches Chinese lessons for $45 per student for a 6-week session. From one group of students, she collects $1575. Find how many students are in the group.
A. 39 students B. 35 students C. 37 students D. 25 students
Solve the system.6w - 4y + z = 19-w + 6x + y - 6z = -153w - x + + 4z = 8 x - 6y - z = -14
A. (1, -5, -7, -3) B. (-5, 5, 4, -4) C. (4, -3, -2, 0) D. (5, -5, 2, -3)