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    1. Toxic pollutants:

    The annual cost in dollars for removing p% of the toxic chemicals from a town's water supply is given by the formula:

    C(p)= 500.000/(100 - p)

    a) Use the accompanying graph to estimate the cost for removing 90% and 95% of the toxic chemicals.
    b) Use the formula to find C(99.5) and C(99.9).
    c) What happens to the cost as the percentage of pollutants removed approaches 100%?

    2. Driving marathon:

    Felix drove 800 miles in x hours on Monday.
    a) Write a rational expression for his average speed.
    b) On Tuesday he drove for 6 hours at the same average speed. Write a rational expression for his distance on Tuesday.

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    https://brainmass.com/math/basic-algebra/toxic-pollutants-formula-driving-marathon-expressions-351393

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    6.1
    120.
    Toxic pollutant: The annual cost in dollars for removing p% of the toxic chemicals from a town's water supply is given by the formula

    C(p)= 500,000/(100-p)
    a) Use the accompanying graph to estimate the cost for removing 90% and 95% of the toxic chemicals.
    b) Use the formula to find C(99.5) and C(99.9).
    c) What happens to ...

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