Solve the problem.The amount of money in an account is given by 
where P is the principal invested, r is the interest rate (as a decimal), and t is the time of the investment. Find the amount at the end of 3 years if $300 is invested at 7%.
A. $321.00
B. $1473.90
C. $367.51
D. $510.00
Answer: C
Mathematics
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Find the limit.
A. 
B. 1
C. -2
D. 2
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.logn
A. 
logn6 + 
lognx - 
lognz
B. 
logn6 + 5 lognx - 9 lognz
C. 
logn6 + 
lognx + 
lognz
D. 
logn6 - 
lognx - 
lognz
Mathematics
Solve the equation. If an answer is not exact, give the answer to four decimal places.
?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form. x - y + 3z = -114x + z = -2 x + 3y + z = 13
A. (-2, 0, 5) B. No solution C. (-2, 5, 0) D. (0, 5, -2)
Mathematics