Write and solve an equation to answer the question. Round percent to the nearest thousandth, if necessary.The appliance store where the Scott family shops offers a 
for paying cash. The Scott family received a discount of $42. What was their total bill before the discount? Round to the nearest dollar.
A. $200
B. $8
C. $840
D. $2
Answer: C
Mathematics
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Use Gauss's Divergence Theorem to calculate 
.F(x, y, z) = zi + xyj + zyk; S: the solid cube cut by the coordinate planes and the planes 
y = 2, and z = 2
A. 16 B. 4 C. 2 D. 32
Mathematics
Write a formula for the nth term of the arithmetic sequence. Use the formula to find the 20th term of the sequence.10, 1 , -8, -17, . . .
A. an = 9n - 19; a20 = 161 B. an = -9n + 10; a20 = -170 C. an = -9n + 19; a20 = -161 D. an = 9n - 10; a20 = 170
Mathematics
Solve the equation.
5x + 2 = 9x- 4
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations. x + z = 12x - 2y = -2 y + z = 4
A. system contains dependent equations B. system is inconsistent
Mathematics