Find the indicated sum. Use the formula for the sum of the first n terms of a geometric sequence.
A. 
B. 
C. 
D. 
Answer: B
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Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.The graph shows the number of people in Country A without health insurance from year 0 through year 3. 
In year 0, there were 25 million people in Country A without health insurance. This number has increased at an average rate of 4.1 million people per year. In what year will the number of people in Country A without health insurance first reach 100 million?
A. year 21 B. year 18 C. year 19 D. year 20
Solve the problem.Joe has a collection of nickels and dimes that is worth $5.30. If the number of dimes were doubled and the number of nickels were increased by 13, the value of the coins would be $9.95. How many dimes does he have?
A. 20 dimes B. 40 dimes C. 26 dimes D. 13 dimes
Sketch the graph of the equation.
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A. ?
B. ?
C. ?
D. ?
Solve the problem.Let g(x) = x2 - 4x - 22. Find x such that (x, 10) is on the graph of f(x).
A. x = -8 or 4 B. x = 8 C. x = -4 or 8 D. no solution