Can someone help me? please asap

- 1-4.

1. The students' mouths were opened in shock.

2. They could not believe the box's contents.

3. Today's activity is examining plants.

4. Sam's stomach ached from laughing so hard.

-5-8.

5. The classroom's glass doors were closed.

6. The students were using the school's computers.

7. The principal's coughing disturbed the students and their two teachers.

8. The teachers' robots rushed toward the door.

Step-by-step explanation:

Hope it helps :)

1-4 you add ‘ s to the words in the ( )

5-8 you combined the sentence by seeing what owns the object examples (The classroom’s glass doors were closed)

Hope this help

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: