Solve the problem.A bank teller has 56 $20 and $10 bills in her cash drawer. The value of the bills is $750. How many $20 bills are there?
A. 19 $20 bills
B. 35 $20 bills
C. 37 $20 bills
D. 21 $20 bills
Answer: A
Mathematics
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Perform the indicated operation. Simplify your answers. 
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the center of the ellipse.
+ 
= 1
A. (-4, -2) B. (2, 4) C. (4, 2) D. (-2, -4)
Mathematics
Use the Intermediate Value Theorem to determine whether the polynomial function has a real zero between the given integers.f(x) = 6x3 + 7x2 + 8x + 10; between -2 and -1
A. f(-2) = 26 and f(-1) = 3; no B. f(-2) = 26 and f(-1) = -3; yes C. f(-2) = -26 and f(-1) = -3; no D. f(-2) = -26 and f(-1) = 3; yes
Mathematics
Graph the function.y = sec 
A. 
B. 
C. 
D. 
Mathematics