Question

Help me pleeeeeeease

Answer 1

Question 1:

`P = l + l + b + b`

`P = 2(2a + 3) + 2(8a - 12)`

`\boxed{\sf{P=20a-18}}`

Question 2:

`P = 20(3) - 18`

`P = 60 - 18`

`\boxed{\sf{P = 42 cm}}`

Question 3:

`P = (3b + 7) + (7b - 2) + (7b - 2)`
`\boxed{\sf{P = 17b+3}}`

Question 4:

`P = 17(6) + 3`

`P = 102 + 3`

`\boxed{\sf{P = 105 \: m}}`