Solve.When Maria finished medical school she owed $21,000 in student loans. She repaid 
of the total amount within two years of graduating. How much did she repay within two years of graduating?
A. $1680
B. $16,800
C. $15,120
D. $18,480
Answer: B
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Using the given triangle lattice, if possible, sketch the following shapes. If not possible, explain why.
(a) Sketch four non-congruent non-right parallelograms with AB as one side.
(b) Sketch all of the squares with AB as one side.
(c) Sketch all of the non-square rectangles with AB as one side.
(d) Sketch an isosceles trapezoid with AB as one side
Solve the system of equations.x2 + y2 = 21y2 = 2x + 13
A. (2, 
), (-3, 
), (2, -
), (-3, -
)
B. (3, 
), (-4, 
), (3, -
), (-4, -
)
C. (2, 
), (-4, 
), (2, -
), (-4, -
)
D. (2, 3
), (-4, 3
), (2, -3
), (-4, -3
)
Determine the most appropriate unit to fill in the blank.The baby weighs 2.6 
.
A. kilograms B. milligrams C. liters D. grams
Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
, where x is the number of watches repaired. What is his minimum cost?
A. $160 B. $260 C. $130 D. $80