in the lab, Milan has two solutions that contain alcohol and is mixing them with each other. Solution a is 40% alcohol and solution B is 12% alcohol. He uses 400 mL of solution a. How many milliliters of solution B does he use, is the resulting mixture is a 20% alcohol solution​

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

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step-by-step explanation:

idk what the heck he answer is, i’m just putting this here so i finish my account

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.