Solve the problem.The charges for renting a moving van are $55 for the first 30 miles and $7 for each additional mile. Assume that a fraction of a mile is rounded up. (i) Determine the cost of driving the van 87 miles. (ii) Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.)
A. $454;
f(x) = 
B. $5184;
f(x) = 
C. $874;
f(x) = 
Answer: A
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Provide an appropriate response.A welder can make 12 welds in an hour. How many welds can 15 welders working at this rate make in an 8 hour day?
A. 180 B. 1,440 C. 1,280 D. 640 E. none of the above
Graph each system of inequalities and shade the portion of the graph represented by the solution set..
A. 
B. 
C. 
D. 
Provide an appropriate response.Add the fractions and reduce: 
+ 
+ 
A. 
B. 
C. 
D. 
Two sides and an angle are given. First, determine whether the given information results in no triangle, one triangle, or two triangles. Solve each resulting triangle.C = 35°, a = 18.7, c = 16.1
A. one triangle; A = 42°, B = 103°, b = 27.4 B. no triangle C. two triangles; A1 = 42°, B1 = 103°, b1 = 27.4 or A2 = 138°, B2 = 7°, b2 = 3.4 D. two triangles; A1 = 103°, B1 = 42°, b1 = 27.4 or A2 = 7°, B2 = 138°, b2 = 3.4