For what values of x and y must the figure below be a parallelogram?

x = 8

y = 10

Step-by-step explanation:

10x = 11x - 8

-11x    -11x

-x = -8

-1     -1

x = 8

10y = 100

10       10

y = 10

y=10 and x=8

Step-by-step explanation:

Opposite angles are equal.

10y=100

y=10

10x=11x-8

8=1x

x=8

probably the last option

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.