A painter takes hours to paint a wall. How many hours will the painter take to paint 8 walls if she works at the same rate?

20.8 hours

Step-by-step explanation:

2 3/5 = 2.6.The painter will take (2.6 × 8) = 20.8 hours to paint a wall.

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the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

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step-by-step explanation: