An electrician charges $75 per hour to wire a new house. In addition, she charges $900 for the wire needed for the job. Which equation represents the total cost, C. of a wiring job that takes the electrician h hours to finish?
A
C = 75h + 900
B
C = (75 + 900) h
С
C + 900 = 75h
D
C + 75h = 900
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Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field