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Mathematics, 11.04.2020 01:55 sidney2602

9. A cleaning service, C, charges a fixed cost of $15 plus a rate of $30 per hour for the length of the
service, and another cleaning service, D, charges a fixed cost of $40 plus a rate of $20 per hour.
(a) Write a function C(t) and a function D(t) that represent the situation.

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9. A cleaning service, C, charges a fixed cost of $15 plus a rate of $30 per hour for the length of...
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