An apple orchard has an average yield of 30 bushels of apples/tree if tree density is 25 trees/acre. For each unit increase in tree density, the yield decreases by 2 bushels. How many trees should be planted in order to maximize the yield?
?
A. 22
B. 20
C. 23
D. 21
Answer: B
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Write an algebraic equation and use it to solve the problem.Don James wants to invest $58,000 to earn $6950 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $6950 in interest per year?
A. $33,000 in B-rated bonds and $25,000 in a CD B. $24,000 in B-rated bonds and $34,000 in a CD C. $25,000 in B-rated bonds and $33,000 in a CD D. $34,000 in B-rated bonds and $24,000 in a CD
Find the differential of the function.y = 
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Provide an appropriate response.Determine the slope of the equation: y = 2
A. 1 B. 0 C. no slope D. 2
Solve the problem.If an object is dropped from a tower of unknown height, the velocity of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Therefore, you can express V as a linear function of t. Find the domain of this function.
A. (-1, ?) B. [1, 4] C. [0, ?) D. (-?, ?)