Solve. Assume the exercise describes a linear relationship.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.80 as soon as you get in the taxi, to which a charge of $1.70 per mile is added. Find an equation that can be used to determine the cost of an x-mile taxi ride. Use this equation to find the cost of a 8-mile taxi ride.
A. $16.58
B. $16.28
C. $16.40
D. $17.30
Answer: C
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Find the particular solution to the given differential equation that satisfies the given conditions.4y''+ 7y' = 0; y = 0 when x = 0, and y= 3 when x = - 
A. y = - 
+ 
e(-7/4)x
B. y = 
- 
e(7/4)x
C. y = 
- 
e(-7/4)x
D. y = - 
+ 
e(7/4)x
Solve the problem.The total cost, c, of an item in dollars, including a 2% sales tax, can be determined by the equation 
where x is the cost of the item before the tax. Determine the total cost of an item whose cost before tax is $277 .
A. $292.54 B. $294.94 C. $282.54 D. $280.20
Use the quadratic formula to solve the quadratic equation.4x2 + 12x = - 4
A. 
B. 
C. 
D. 
Solve the problem.Fill in the blank.3
+ 14
cannot be simplified because the _________ are not the same.
A. radicands B. variables C. coefficients D. roots or indexes