Solve the system by substitution. If the system is inconsistent or has dependent equations, say so.x = -17 - 3y-4x + 2y = -2
A. {(-2, -5)}
B. ?; inconsistent system
C. {(2, -4)}
D. {(-3, -4)}
Answer: A
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Find the equation of the tangent plane (or tangent "hyperplane" for a function of three variables) at the given point p.
, p = 
A. 20x + 16y - z = 34 B. 20x + 16y - z = 28 C. 2x + y + 28z = 1 D. 2x + y + 28z = 31
Determine the finance charge for a credit card that has the given average daily balance and interest rate.
Average daily balance: $752.20; monthly interest rate: 2.5%. Round your answer to the nearest hundredth percent. a. 18.81% b. 40.00% c. 4.50% d. 37.61%
Solve the problem.Johnny's rental company charges 
per day for a small truck plus 
per mile. Annie's rental company charges 
per day for the same size truck plus 
per mile. For what number of miles driven (in one day) will Annie's company be cheaper?
A. less than 900 miles B. more than 1000 miles C. less than 450 miles D. more than 900 miles
Find the slope of the line passing through the pair of points. ? (4.1, 3.1), (-3.8, 3.1) ?
A. 
m= 0.40
B. 
m = -Infinity
C.
m = 0.80
D.
m = 0.00E.
m = 20.67