Solve the equation.
- 4 = 1
A. 15
B. 20
C. -15
D. -20
Answer: B
Mathematics
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Simplify.
A. 
B. 1
C. 1 - a2
D. 
Mathematics
Solve.
- x = 3
A. -3 B. 4 C. -4 D. 6
Mathematics
Solve the problem.A cellular phone company determines a monthly bill from the x number of minutes of usage. The amount of the bill, B(x), (in dollars) is given by the function: 
Determine the bill of a customer who uses her cellular phone 32.00 minutes during the month.
A. $959.36 B. $32.00 C. $34.01 D. $4.16
Mathematics
Translate the following statement to an expression or equation. Use x to represent the unknown value. Do not simplify or solve.The difference of sixteen and a number, divided by four.
A. 16 - 
B. 
- 16
C. 
D. 
Mathematics