Solve the problem.If 8 sandwich rolls cost $2.08, how much will 28 rolls cost?
A. $7.28
B. $8.28
C. $18.64
D. $16.64
Answer: A
Mathematics
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Use percents, percent equations, and/or percent proportions to solve the application.Ms. Mork bought a house five years ago for $210,000. Today it is valued at $195,000. Find the percent decrease in value of the house.
A. 92.9% B. 7.7% C. 7.1% D. 1300%
Mathematics
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 5 inches, b = 12 inches, c = 9 inches
A. 23 square inches B. 21 square inches C. 49 square inches D. 51 square inches
Mathematics
Find a unit vector that has the same direction as the given vector.v = 
A. 
B. 
C. 
D. 
Mathematics
The graph of y = f(x) is shown. Use the graph to answer the question.Is f continuous at x = 2?
A. No B. Yes
Mathematics