Solve for p.
7 - p = 4
p=

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p=3

Step-by-step explanation:

7-p=4 subtract 7 on both side if equal sign

-7 -7

0-p=-3 subtract 7 with 4

-p=-3

(-1)-p=-3(-1) multiply -1 with the end of equation to get + #

p=3

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees

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.