Solve the problem.A new exhibit is scheduled to open at the local museum. Museum officials expect that 8000 people will visit the exhibit in its first week, and that the number of visitors will drop by 30 people per week after the first week during the first 6 months. Find the total number of visitors expected in the exhibit's first 7 weeks.
A. 55,190 visitors
B. 55,370 visitors
C. 47,550 visitors
D. 39,550 visitors
Answer: B
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Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 
A. Vertical hyperbola ; e = 8
B. Vertical ellipse: e = 
C. Parabola opening downward; e = 1
D. Parabola opening to the left; e = 1
Solve the problem.A certain company has found that its expenditure rate per day (in hundreds of dollars) on a certain type of job is given by 
where x is the number of days since the start of the job. Find the expenditure if the job takes 8 days.
A. $448 B. $10,400 C. $104 D. $44,800
Evaluate the integral.
A. 8 B. 24 C. 48 D. 72
Factor the sum or difference of cubes. 216k3 + m3
A. (6k + m)(36k2 + m2) B. (6k + m)(36k2 - 6km - m2) C. (6k + m)(36k2 + 6km + m2) D. (6k + m)(36k2 - 6km + m2)