Solve.A wind turbine generator produces P kilowatts of power for wind speed w (measured in miles per hour) according to the equation P= 2.6w2. Thus, the number of kilowatt hours P as a function of w is P(w) = 2.6w2. At a particular time the wind speed is measured to be 20 miles per hour. However, the measuring device is known to have an inherent error of measure, e. Find an expression for the actual amount of energy produced by finding 
A. P(20 + e) = e + 1040
B. P(20 + e) = 2.6e2 + 20
C. P(20 + e) = 2.6e2 + 1040
D. P(20 + e) = 2.6e2 + 104e + 1040
Answer: D
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Solve the problem.Jimmy is a partner in an Internet-based coffee supplier. The company offers gourmet coffee beans for $12 per pound and regular coffee beans for $4 per pound. Jimmy is creating a medium-price product that will sell for $6 per pound. The first thing to go into the mixing bin was 20 pounds of the gourmet beans. How many pounds of the less expensive regular beans should be added?
A. 62 lb B. 59 lb C. 60 lb D. 61 lb
Subtract.(-4a5 - 18a2) - (-13a5 + 13a2)
A. 9a5 - 5a2 B. 9a5 - 31a2 C. -17a5 - 5a2 D. -22a7
Simplify. Assume that variables can represent any value.
A. 8t2
B. 8t
C. -8t
D. 8
Solve for x. Assume that a and b represent positive real numbers.x2 = 100b
A. 
B. 
C. 
D. {-10b, 10b}