Use the distributive property to write the expression without parentheses. Then simplify, if necessary.7(2z + 6) - 3
A. 14z + 3
B. 9z + 10
C. 14z + 39
D. 14z + 21
Answer: C
Mathematics
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Simplify.(14x2)(0)
A. 1 B. 14x2 C. 14 D. 0
Mathematics
Solve the problem.Given the following revenue and cost functions, find the x-value that makes revenue a maximum. R(x) = 80x - 2x2; C(x) = 25x + 105
A. 40 B. 19 C. 21 D. 20
Mathematics
Solve the problem.A truck rental company rents a moving truck one day by charging $39 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 120 miles?
A. C(x) = 0.09x + 39; $40.08 B. C(x) = 0.09x - 39; -$28.20 C. C(x) = 0.09x + 39; $49.80 D. C(x) = 39x + 0.09; $4,680.09
Mathematics
Graph the equation.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics