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A person hired a fire to build a CB radio tower. the firm charges 100 for labor for the first 10 feet. After that, the cost of the labor for each succeeding 10 feet is $25. more than the preceding 10 feet. That is, the next 10 feet will cost $125, the next 10 feet will cost $150. etc. How much will it cost to build a 90- foot tower

  • math - ,

    1st 10 Ft = $100.
    2nd 10 Ft = $125.
    3rd 10 Ft = $150.
    4th 10 Ft = $175.
    5th 10 Ft = $200.
    6th 10 Ft = $225.
    7th 10 Ft = $250.
    8th 10 Ft = $275.
    9th 10 Ft = $300.

    TOT. = $1800.

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