Solve the problem.A convention manager finds that she has $1500, made up of twenties and fifties. She has a total of 48 bills. How many fifty-dollar bills does the manager have?
A. 48 fifty-dollar bills
B. 12 fifty-dollar bills
C. 30 fifty-dollar bills
D. 18 fifty-dollar bills
Answer: D
Mathematics
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Solve the problem.Find the average height of the paraboloid 
above the disk 
in the 
.
A. 6
B. 
C. 10
D. 2
Mathematics
Find the asymptotes of the hyperbola. 
- 
= 1
A. y = 
x and y = - 
x
B. y = 
x and y = - 
x
C. y = 
x and y = - 
x
D. y = 
x and y = - 
x
Mathematics
Solve for the specified variable. Assume that all other variables are nonzero.M = ?r2hd; for r
A. r = 
B. r = ±
C. r = 
D. r = 
Mathematics
Use a scientific calculator to approximate for x.ln x = -0.67
A. x ? 0.2138 B. x ? 4.6774 C. x ? 1.9542 D. x ? 0.5117
Mathematics