What number can u multiply by √7 to get a rational number? select each correct answer a.0 b.7 c.-√7 d. √7

sqrt(7) can be multiplied by 0 and sqrt 7 to become rational.

A and D

the answer is d

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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.