Solve the problem.Suppose a tank contains 100 gallons of a solution of 10 lb of salt dissolved in water, which is kept uniform by stirring. If pure water is allowed to flow into the tank at a rate of 3 gallons per minute, and the mixture flows out at a rate of 2 gallons per minute, find an expression for the amount of salt in the tank after t minutes.
A. y = 
B. y = 
C. y = 
D. y = 100 (t - 100)2
Answer: A
Mathematics
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Provide an appropriate response.Find the slope of the line passing through the following pairs of points: (3, -2) and (-3, -4)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.Brand X copier advertises that its copiers run 15% longer between service calls than its competitor. If Brand X copiers run 35,700 copies between services, how many copies would the competitor run?
A. 31,043 copies B. 19,297 copies C. 30,345 copies D. 41,055 copies
Mathematics
Solve the proportion and check.
= 
A. 3
B. 
C. 4
D. 3
Mathematics
Simplify the given expression.
z - 6z - 2z
A. 12z
B. 
z2
C. 
z
D. 12z2
Mathematics