Scale factor/ area

this diagram of a rectangular city park was drawn using a scale factor of 1 centimeter to 20 meters. in the diagram shown, assume each square on the grid is 1 centimeter in length.

each square on the grid is 1 centimeter long. what is the area, in square meters, of the actual park on which this scale drawing is based?
!

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

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.