Solve.Grady is planning a border for his triangular-shaped garden. One side of the garden is 12.9 feet long, another side is 19.1 feet long, and the third side is 17.9 feet long. Find the amount of border material needed.
A. 49.8 ft
B. 48.9 ft
C. 49.9 ft
D. 47.9 ft
Answer: C
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Solve the problem.On the July 5 billing date, David had a balance due of $857.86 on his credit card. The transactions during the following month were: 
The interest rate on the card is 1.8% per month. Using the average daily balance method, find the finance charge on August 5 (July has 31 days).
A. $13.37 B. $14.08 C. $13.91 D. $13.89
Determine the vertex of the graph of f.f(x) = 2(x + 2)2 + 6
A. (-6, 2) B. (2, 6) C. (6, -2) D. (-2, 6)
Find an equation of the line with the given slope that passes through the given point. Write the equation in the form 
m = -3; (-1, -8)
A. 3x + y = -25 B. 3x + y = 11 C. 3x + y = -8 D. 3x + y = -11
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. 