Theodore hired a roofer for some work. on final bill he was charged a total of 642$ .425$ was listed for parts and rest for labor . if the hourly rate was 31$ how many hours of labor was needed ? ​

1. convert. simplify your answer and write it as a proper fraction or as a whole or as a mixed number.4oz =_ pounds2. what is 1/3 of 66for both show work.

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?