Express the sum without using summation notation.
A. 8 + 40
B. 1 + 2 + 3 + 4 + 5
C. 8 + 16 + 24 + 32 + 40
D. 4 + 4 + 4 + 4 + 4
Answer: C
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Solve the problem.A merchant has coffee worth $6 a pound that she wishes to mix with 40 pounds of coffee worth $9 a pound to get a mixture that can be sold for $8 a pound. How many pounds of the $6 coffee should be used?
A. 60 lb B. 20 lb C. 30 lb D. 10 lb
Find the probability.A bag contains 17 balls numbered 1 through 17. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?
A. 
B. 8
C. 
D. 
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A right circular cone with r = 10 cm, h = 5 cm (Use the formula S = ?r 
+ ?r2.)
A. 78.5 cm2 B. 157.0 cm2 C. 665.1 cm2 D. 314.0 cm2
Solve the problem. Round your answer to two decimal places.Hooke's Law for an elastic spring states that the distance a spring stretches variesdirectly as the force applied. If a force of 15 pounds stretches a certain spring 
then how much will a force of 
stretch the spring?
A. 3 in. B. 18 in. C. 5 in. D. 135 in.