Evaluate the expression for the given value or values.- 
, for y = -6, z = -3
A. 2
B. 3
C. -3
D. -2
Answer: D
Mathematics
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Perform the operation. Write the answer as a fraction in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
You put a drink in the freezer for a while. You take the drink out, but being forgetful, you leave the drink sitting on the kitchen table. The temperature D, in degrees, of the drink 
minutes after it is put in the freezer is given by
.
A: Make a graph of D versus t for up to one hour after the drink is placed in the freezer.B: During what period was the temperature of the drink less than 32 degrees?
What will be an ideal response?
Mathematics
Graph.-4x + 21 = 0
A. 
B. 
C. 
D. 
Mathematics
A box contains 4 red and 5 green balls. Three balls are drawn. The probability 2 red and 1 green are drawn is:
A. 
B. 
C. 
D. 
Mathematics