It takes 1 hour for 1 worker to clean an area that is 20 feet by 30 feet. How many workers are needed to clean 18,400 square feet in 8 hours?

4 workers

Step-by-step explanation:

20 ft x 30 ft = 600 sq ft per worker per hour x 8 hours = 4800 sq ft per worker

18,400 sq ft divided by 4800 = 3.83 so 4 workers

what is the original number? you forgot to add it.

it's 100

step-by-step explanation:

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

  n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the  14th  row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100

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