Solve the equation. First simplify the expression by combining like terms.4(2z - 5) = 7(z + 5)

A. -15
B. 19
C. 15
D. 55


Answer: D

Mathematics

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A. all real numbers, or (-?,?)
B. , or 
C. , or  ?  
D. , or 

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Find the sum.

A. 231.75 B. 42.75 C. 192.4 D. 274.5

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Perform the indicated operation. Simplify the result if possible.3 ft 9 in. ÷ 3

A. 1 ft 4 in. B. 1 ft 3 in. C. 3 ft 1 in. D. 2 ft 3 in.

Mathematics

Solve the problem.The demand function for a certain book is given by the function   Find the marginal demand 

A. D'(p) = -0.268pe-0.004p-1 B. D'(p) = -0.268e-0.004p C. D'(p) = 0.268e-0.004p D. D'(p) = -0.004e-0.004p

Mathematics