The histogram shows the scores of each participant in a game from a total of 100 participants. 
How many more participants scored 60-79 than 20-39?
A. 35 participants
B. 13 participants
C. 26 participants
D. 22 participants
Answer: C
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Find the x- and y-intercepts. If no x-intercepts exist, state so. Round to two decimal places if necessary.f(x) = -x2 + 4x - 8
A. 
, (0, -8)
B. No x-intercepts, (0, 8)
C. No x-intercepts, (0, -8)
D. 
, (0, 8)
Find the area.
A. 59.5 mi2 B. 98 mi2 C. 238 mi2 D. 119 mi2
Solve the equation for all values 0 ? x ? 2?.2
sin 4x = 3
A. x = 0, 
, ?
B. x = 
, 
, 
, 
, 
, 
, 
, 
C. x = 0
D. x = 
, 
Solve the problem.An airline charter service charges a fare per person of $350 plus $20 for each unsold seat. The airplane holds 100 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = (100 - x)(350 + 20x) or 35,000 + 2000x - 20x2 B. R(x) = x(350 + 20x) or 350x + 20x2 C. R(x) = (100 - x)(350 + 20x) or 35,000 + 1650x - 20x2 D. R(x) = 100(350 + 20x) or 35,000 + 2000x