Solve the problem.As part of her retirement savings plan, Patricia deposited $400 in a bank account during her first year in the workforce. In her twentieth year she deposited $875. Assuming that the sequence of numbers giving the amount she deposited in years 1 through 20 is arithmetic, what was the total amount that she deposited in the twenty years?
A. $25,500
B. $13,000
C. $12,750
D. $26,000
Answer: C
Mathematics
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Determine whether the equation defines y as a function of x.y = 7x - 3
A. No B. Yes
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Use a graph of the function to find the derivative of the function at the given point, if it exists.f(x) = 
at x = 3
A. 1 B. -1 C. Does not exist D. 0
Mathematics