Provide an appropriate response.The average of a group of positive numbers is a number.
Fill in the blank(s) with the appropriate word(s).
positive
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Solve the problem.In a chemical reaction, the rate at which the amount of a reactant changes with time is proportional to the amount present, such that 
, when t is measured in hours. If there are 
of reactant present when t = 0, how many grams will be left after 
? Give your answer to the nearest tenth of a gram.
A. 2.2 g B. 6.7 g C. 4.5 g D. 0.1 g
Solve the system of equations by graphing. If the system is inconsistent or the equations are dependent, say so.2x + y = 11 x + 6y = 11
A. {(5, 4)} B. {(5, 1)} C. {(6, -1)} D. {(-5, 1)}
Identify the equation without completing the square.4x2 - 4y2 - 3x + 4y + 2 = 0
A. parabola B. ellipse C. hyperbola D. not a conic
Factor the expression completely.
?
?
A. 
B. 
C. 
D. 
E. 