Solve.2 - x = -0.4
A. 1.6
B. 2.4
C. 1.9
D. 1.1
Answer: B
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The cost 
, in dollars, of operating your car depends on the mileage m, in miles per gallon, that your car gets, the distance d, in miles, that you drive, and the cost g, in dollars per gallon, of gasoline.
?
A. Write a formula that gives the cost , in dollars, of driving d miles in a car that gets m miles per gallon, using gasoline that costs g dollars per gallon.
?
B. Use functional notation to indicate the cost of driving 160 miles in a car that gets 27 miles per gallon using gasoline that costs 3.77 dollars per gallon.
?
C. Calculate the value you found in part B.
What will be an ideal response?
Solve the system of equations algebraically for real values of x and y.
?
?
A. 
B. 
C. 
D. 
E. no solution
Solve the equation on the interval [0, 2?).sin2 x - cos2 x = 0
A. 
, 
B. 
C. 
, 
, 
, 
D. 
, 
Evaluate the expression.8x, if x = 4.9
A. 12.9
B. 
C. 39.2
D. 3.1