Set up the percent proportion, and write "unknown" for the value that is not given. Recall that the percent proportion is 
= 
. Do not try to solve for any unknowns.What is 43% of 87?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
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Determine whether the source of error represents random or systematic error. Athlete's are timed in the 100-m dash by a person with a stop watch. There is some error involved in stopping the watch at the correct instant.
A. Systematic error B. Random error
Graph on a number line.-3 < x < 1 
A. 
B. 
C. 
D.
Solve the problem.The area of a rectangular piece of cardboard shown is 774 square inches. The cardboard is used to make an open box by cutting a 4-inch square from each corner and turning up the sides. If the box is to have a volume of 1400 cubic inches, find the dimensions of the cardboard that must be used.
A. 22 in. by 47 in. B. 10 in. by 31 in. C. 14 in. by 39 in. D. 18 in. by 43 in.
Write a fraction to represent the shaded part of the object.
A. 
B. 
C. 
D. 