Solve the problem.Last week gas prices varied over the course of the week. On Monday, the price was $2.10 per gallon. On Wednesday, the price went up by $0.10, on Friday, the price went up by $0.16. Finally on Saturday, the price went down by $0.10. What was the price of gas on Saturday?
A. $2.20
B. $2.00
C. $2.26
D. $2.36
Answer: C
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Answer the question.Joan chose one of the numbers 1, 2, 3, . . . , 256 and challenged John to determine the number by asking questions to which Joan would answer 'yes' or 'no'. What is the minimum number of questions that John must ask to be certain of guessing the correct number?
A. 128 questions B. 8 questions C. 16 questions D. 64 questions
Determine the constant term that must be added to the expression to make it a perfect square.x2 - 
x
A. - 
B. - 
C. 
D. 
Find the average rate of change of the function as x changes from a to b.g(x) = (x - 2)2; a = 3, b = 7
A. 14 B. 6 C. 0 D. -8
Decide whether the composite functions, f ? g and g ? f, are equal to x.f(x) = x3 + 9, g(x) = 
A. Yes, yes B. Yes, no C. No, no D. No, yes