An employee is paid a total of E dollars for working T hours at P dollars per hour.
a. Complete Table 21 to help find a formula that describes the association among T, P, and E. Show the arithmetic to help you see a pattern.

b. Solve the formula you found in part (a) for T.
c. Use the formula you found in part (b) to find the value of T when P = 14 and E = 420. What does your result mean in this situation?
d. An employee is paid $12 per hour for working Monday through Friday, earning a total of $480. She is paid $18 per hour for working on the weekend, earning another $270. What is the total number of hours she worked for the entire week?

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Table 21 Time, Hourly Pay, and Total Pay Hourly Pay (dollars) Time hours) Total Pay (dollars) 10 15 13