If the water continues to drain at this rate until it is empty, how many total minutes will it take Paula to drain her fish tank? Explain how you got your answer.

33-15=18 cm of water was gone in 6 min. so it’s draining 3cm/min.

She still has 15cm left to drain at 3cm/min. Is 5 more min. Total=11min.

Or 33 cm divided by 3 min=11 min

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.