The diagram below shows the arrangement of seats in the first three rows of an auditorium.

if this pattern continues throughout the auditorium, how many seats will be in the 21st row?

a.84

b.82

c.86

d.90

the rows are under the answers for this question in order to answer it.

If anyone has done the algebra 2 chaos theory portfolio would you be wiling to me? i kind of know what i'm doing i just don't know if i'm doing it right.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply