Acivic group is selling bumper stickers as a fundraiser during the first week they sold 50 bumper stickers during the second week the group sold 50% more bumper stickers in the first week during the third week the groups of 50% fewer bumper sticker then the second week then the second week explain how you can use proportions to find the percent decrease from the first week sales to the third week sale

step-by-step explanation:

compare

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.