8. Fierro Brothers, a discount broker, charges their customers a $19 flat fee per trade. The Sonde Investment House charges a 2% commis-
sion. For what amount of stock would both brokers charge the same
commission?

1st part is 64,000,000

2nd part 500,000

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.