Fill in the blank with one of the words or phrases listed below. 
A combination of operations on variables and numbers is called a(n) 
.
A. algebraic expression
B. addition
C. equation
D. evaluating the expression
Answer: A
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Solve.A box of cereal contains about 12 cups. A serving size is 
cup. About how many servings are in the box of cereal?
A. 8 servings
B. 3
servings
C. 16 servings
D. 9 servings
Solve the problem by integration.Find the volume generated by revolving the first-quadrant area bounded by 
and x = 5 about the y-axis.
A. 2? ln 6264
B. 4? ln 6264
C. 4? ln 
D. 8? ln 
The following figures are similar. For the pair, find the length of the side indicated by x.
A. 9 in. B. 18 in. C. 27 in. D. 13 in.
Solve the problem.If a rock falls from a height of 60 meters on Earth, the height H (in meters) after x seconds is approximately H(x) = 60 - 4.9x2.When does the rock strike the ground? Round to the nearest hundredth, if necessary.
A. 3.5 sec B. 1.58 sec C. 2.5 sec D. 12.24 sec