Which ones are true? A.2.3+(-2.3) is equal to zero
B.(-3.7)+(-4.1) is positive
C.-2.6-(-12/4) is positive
D.5/2 +(-2.5) is negative
E.72-(-100) is negative

24/56=hx^7

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.