Multiple Choice
A rectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. It costs $2.10 per square foot to build the base and $0.75 per square foot to build the sides. Write the cost C of constructing the box as a function of x, y, and z.
A)
B)
C)
D)
E)
Correct Answer:

Verified
Correct Answer:
Verified
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