Solve the problem.John owns a hotdog stand. He has found that his profit is represented by the equation 
with P being profits and x the number of hotdogs. How many hotdogs must he sell to earn the most profit?
A. 20 hotdogs
B. 32 hotdogs
C. 41 hotdogs
D. 33 hotdogs
Answer: B
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Provide an appropriate response.Is f continuous at x = 0? 
A. Yes B. No
Find the indicated unit price.A case of 24 bottles of IceMan water costs $3.12, while a case of 20 bottles of Big Mountain water costs 
. Find the unit prices and compare them to determine which is the better deal. Round to two decimal places.
A. IceMan: $0.13 per bottle; Big Mountain: $0.10 per bottle. Big Mountain water is the better deal. B. IceMan: $0.15 per bottle; Big Mountain: $0.13 per bottle. Big Mountain water is the better deal. C. IceMan: $3.12 per bottle; Big Mountain: $3.00 per bottle. IceMan water is the better deal. D. IceMan: $0.13 per bottle; Big Mountain: $0.15 per bottle. IceMan water is the better deal.
Solve the problem.How many relay teams of 4 members can be chosen from a 7 member team to run in a relay race?
A. 210 B. 22 C. 28 D. 840
Solve the problem.A man earned $2500 the first year he worked. If he received a raise of $400 at the end of each year, what was his salary during the 15th year?
A. $8100 B. $5600 C. $8500 D. None of these