Braelyn is writing an equation to represent the perimeter of a rectangle with the width equal to half the length. She knows that the perimeter is equal to 18 units and needs to find the length and width of the rectangle. Which equations represent this relationship? Select the four correct answers.

Given that,

The perimeter of a rectangle, P = 18 units

Width = half of the length.

To find,

Equation that represent the relation between length and width.

Solution,

We have,

P = 18

Let length is l and width is b.

b = l/2

The perimeter of a rectangle, P = 2(l+b)

Put all the values,

18 = 2(l+l/2)

9 = l+l/2

3l/2 = 9

and

Therefore, this is the required solution.

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.

the answer is option a you would get more money.it would be $250.

step-by-step explanation:

for option b 200/2=100=50% 100/2=50=25% 50/5=10=5% it would be $220