Simplify the expression.8x - (2x - 8) - (-8x + 1)
A. 18x + 7
B. 14x + 9
C. 14x + 7
D. 14x - 9
Answer: C
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Solve the problem.Sybil is having her yard landscaped. She obtained an estimate from two landscaping companies. Company A gave an estimate of $180 for materials and equipment rental plus $60 per hour for labor. Company B gave an estimate of $230 for materials and equipment rental plus $50 per hour for labor. We can represent this situation with the system of linear equationsc = 180 + 60xCompany Ac = 230 + 50xCompany Bwhere c is the total cost and x is the number of hours of labor. 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. 5; for 5 hours of labor, both companies charge the same. B. 8; for 8 hours of labor, both companies charge the same. C. 4; for 4 hours of labor, both companies charge the same. D. 4; there is a number of hours of labor, for which both companies charge $400.
Write the first four terms of the recursive sequence.a1 = 5, an = 1 - 
for n ? 2
A. 5, - 
, 
, 
B. 5, 
, - 
, -5
C. 5, 
, 
, -3
D. 5, 
, - 
, 5
Select the graph of the function and determine the zeros of the polynomial.
?
?
A. ?
?
?
B. ?
?
C. ?
?
D. ?
?
E. ?
?
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.- 
+ 
A. 
B. - 
C. 
D. - 