Solve.The population of a particular city is increasing at a rate proportional to its size. It follows the function P(t) = 1 + ke0.04t where k is a constant and t is the time in years. If the current population is 21,000, in how many years is the population expected to be 52,500? (Round to the nearest year.)
A. 134 yr
B. 23 yr
C. 13 yr
D. 10 yr
Answer: B
Mathematics
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Solve the problem.A gas station sells 4820 gallons of regular unleaded gasoline in a day when they charge $4.05 per gallon, whereas they sell 3855 gallons on a day that they charge $4.10 per gallon. Find a linear equation that expresses gallons sold, G, in terms of price, p. Use this equation to predict the number of gallons sold at a price of $3.92 per gallon.
A. 7329 gallons B. 7333.1 gallons C. 7325.7 gallons D. 7338 gallons
Mathematics
Provide an appropriate response.Use the substitution 
to solve the equation 2(y + 3)2 - 5(y + 3) + 3 = 0.
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression.18 + (-1) - (-4)
A. -21 B. 15 C. 21 D. 13
Mathematics
Divide.2.1 ÷ 0.07
A. 0.3 B. 30 C. 3 D. 0.03
Mathematics