(1) The population density of a village in South Africa is 2,000 people/100 mi?. Which of the following is equivalent to the population density of this South African village? (2.1)
(a) 0.2 people/mi?
(b) 2 people/mi?
(c) 2 people/10 mi?
(d) 20 people/mi?
(e) 200 people/mi?

if you was gonna solve for a, a is a   < -12

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.