Dan paid 7.5% sales tax when bought a new smart watch. The sales tax was 30.75. what was the total cost of the smart watch including tax

answer: #1 ads up by 8 and i don't know #2

a

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.

365

step-by-step explanation: