Use the properties of equality to solve the equation.
n = 8
A. 
B. 18
C. 
D. 
Answer: B
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Match the equation with the surface it defines.
+ 
+ 
= 1 
A. Figure 2 B. Figure 1 C. Figure 3 D. Figure 4
Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 5 amperes when the resistance is 342 ohms. What is the current when the resistance is 864 ohms?
A. 0.08 amps B. 12.6 amps C. 0.51 amps D. 2 amps
Solve the problem.Joe has a collection of nickels and dimes that is worth $4.25. If the number of dimes was doubled and the number of nickels was increased by 10, then the value of the coins would be $7.85. How many dimes does he have?
A. 10 B. 23 C. 15 D. 31
Subtract.(-2r4 + 9r3 - 3r) - (8r4 - 9r3 + 6r2 - 2r)
A. -10r4 + 18r3 - 6r2 - r B. 10r4 - 18r3 + 6r2 + r C. 6r4 + 6r2 - r D. -6r4 - 6r2 + r