Solve the equation.
= 2x
A. -5
B. 1
C. 5
D. No solution
Answer: C
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Determine whether the quantity is a variable or a constant.The number of hotdogs sold during the baseball game
A. variable B. constant
Solve the problem.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
. Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)
A. 96 ft B. 144 ft C. 128 ft D. 80 ft
Find the cross-product and determine whether the proportion is true or false.
= 
A. 8 ? 162; false B. 72 = 72; true C. 18 ? 72; false D. 36 = 36; true
Solve.In a survey of 100 people, 33 preferred onions on their hot dogs. What percent preferred onions?
A. 3.3%
B. 0.33%
C. 
%
D. 33%