Solve the system of equations by the addition method.
A. (-6, -6)
B. (0, 0)
C. infinite number of solutions
D. no solution
Answer: C
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Solve the problem.
Find the ratio of the volume of the cone to the volume of the hemisphere if the height of the cone, h, is equal to the diameter of the hemisphere, d.
A. 1 : 1 B. 4 : 3 C. 3 : 2 D. 1 : 2
Place parentheses, if needed, to turn this into a true statement.8 - 10 - 9 + 3 = 10
A. 8 - (10 - 9) + 3 = 10 B. No parentheses needed C. 8 + 10 - (9 + 3) = 10 D. (8 - 10) - 9 + 3 = 10
Find the distance between the two points on the coordinate plane. If necessary, round the answer to the nearest thousandth.(-5, 6) and (-10, 18)
A. 3
units ? 18.735 units
B. 13 units
C. 3
units ? 28.302 units
D. 
units ? 10.909 units
Solve.When Maria finished medical school she owed $42,000 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. $33,600 B. $30,240 C. $3360 D. $36,960