Solve the problem.In 1840 the population of a midwest city was 16,000. By 1870 it had grown to 17,000. If it continues to grow at the same rate, what will the population be in 1909? Give your answer to the nearest whole number.
A. 17,301
B. 18,300
C. 18,000
D. 17,001
Answer: B
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Fill in the blank(s) with the appropriate word(s).
Solve the system of equations by substitution.5x - 2y = -1 x + 4y = 35
A. (2, 8) B. (2, 9) C. (3, 8) D. (3, 9)
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the [H3O+] if the pH = 2.3.
A. 2.7 × 101 B. 5.0 × 10-3 C. 2.0 × 102 D. 3.6 × 10-1
The output is the total cost of a shirt, where x is the price of the shirt and a sales tax of 9% of the price is added. Write an equation describing the output (y) as a function of the input (x).
A. y = 1.09x B. y = x + 0.09 C. y = x – 0.09 D. y = 0.91x E. y = 0.09x – 1