Use order of operations to simplify the expression.(8 - 1) - (-20 + 16)
A. -3
B. 13
C. 11
D. -29
Answer: C
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Solve the problem.For a particular circuit, the current (in amperes) after time t (in seconds) at a certain point P is given by 
Find the charge (in coulombs) that passes point P during the first second by evaluating 
A. 0.0039 C B. 1.28 C C. 0.005 C D. 256 C
Convert the polar equation to a rectangular equation.r = 
A. x2 = -8y + 16 B. y2 = -8x + 16 C. x2 = 8y + 16 D. y2 = 8x + 16
Solve the system of equations by the addition method.
A. (10, -1.2) B. (-1.2, 10) C. infinite number of solutions D. no solution
Solve the problem.Stephanie receives a salary of $650 per month plus a commission of 5.5% on the first $3,000 of sales, and 7% of all sales over $3,000. Find Stephanie's gross pay for the month if her sales were $11,100.
A. $732.00 B. $1592.00 C. $1382.00 D. $2867.00