Express the sum in sigma notation.3 + 6 + 9 + 12 + 15
A. 
B. 
C. 
D. 
Answer: C
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For the given geometric sequence, find an and the sum of the terms from a1 to an. 3, -9, 27, -81 ... ; find a7
A. -81; 1641 B. 2187; 1641 C. 2187; 21 D. 732; -21
Provide an appropriate response. Find the equation of the line with x-intercept 5 and y-intercept 8.
A. y = 
x + 5
B. y = 8x + 5
C. y = - 
x + 8
D. y = -5x + 8
Solve the equation. Express radicals in simplest form.(2m - 1)2 - 72 = 0
A. 
B. 
C. 
D. 
Solve the problem.A new exhibit is scheduled to open at the local museum. Museum officials expect that 9000 people will visit the exhibit in its first week, and that the number of visitors will drop by 40 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. 62,160 visitors B. 44,400 visitors C. 53,400 visitors D. 61,920 visitors