Solve the problem.The BBQ committee always orders one pound of ribs for each person who signs up for the Homecoming BBQ, plus 11 extra pounds of ribs. If the committee ordered 120 pounds of ribs this year, find the number of people who signed up for the BBQ.
A. 11 people
B. 109 people
C. 131 people
D. 120 people
Answer: B
Mathematics
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Find an equation of the following curve.A hyperbola centered at the origin having vertex at (0, -5) and eccentricity equal to 2
A. 
- 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Find the vertices and foci of the ellipse.64x2 + 9y2 = 576
A. Vertices: (±8, 0); Foci: (±
, 0)
B. Vertices: (0, ±8); Foci: (0, ±
)
C. Vertices: (±3, 0); Foci: (±
, 0)
D. Vertices: (0, ±3); Foci: (0, ±
)
Mathematics
Provide an appropriate response.The formula for calculating the sum-of-the-years-digits is 
.
A. True B. False
Mathematics
Find the sum.-47 + (-34)
A. 13 B. 81 C. -81 D. 82
Mathematics