Solve the problem.Subtract (5a5 - 3a4) from the sum of (7a5 - 3a4) and 
A. 5a9
B. 10a5 - 5a4
C. 10a10 - 5a8
D. 5a18
Answer: B
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1 days = ___ hours
A. 24 B. 25 C. 1 D. 60
Evaluate the expression without using a calculator, or state that the value does not exist. Simplify the answer to the extent possible.sinh 0
A. e
B. undefined
C. 
D. 0
Solve the problem.In 2012, the average annual salary for elementary school teachers was $24,269. In 2017, the average annual salary for elementary school teachers was $28,148. Let y be the average annual salary in the year x, where x = 0 represents the year 2012.a) Write a linear equation that models the average annual salary for elementary school teachers in terms of year x.b) Use this equation to determine the average annual salary for elementary school teachers in 2014.
A. a) y = 770.8x + 24,269 b) $25,820.60 B. a) y = 775.8x + 24,269 b) $26,596.40 C. a) y = 770.8x + 24,269 b) $25,810.60 D. a) y = 775.8x + 24,269 b) $25,820.60
Solve for the requested variable.y varies directly as x, and y = 2 when x = 5. Find y when x = 45.
A. y = 
B. y = 
C. y = 
D. y = 18