Solve the problem.After one round in a card game, your score was -30 points. After the second round, your score was 
How many points did you gain in the second game?
A. -7 points
B. 37 points
C. 7 points
D. 67 points
Answer: D
Mathematics
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Use scientific notation to solve the problem.Assume that the volume of the earth is 5 x 1014 cubic meters and the volume of a bacterium is 2.5 x 10-16 cubic meters. If the earth could be filled with bacteria, how many would it contain?
A. 5.0 x 1031 bacteria B. 2.0 x 10-30 bacteria C. 2.0 x 1030 bacteria D. 5.0 x 10-31 bacteria
Mathematics
Graph the solution set of the system of inequalities.y > - 
x + 3y ? 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Mike buys a bike for $2800. In the first month after he buys it, it depreciates by 13%. What is the value of the bike after 1 month?
A. $364 B. $2787 C. $3164 D. $2436
Mathematics
Solve the equation.
- 4 = -1
A. -5, 5 B. -3 C. 3, -3 D. 3
Mathematics