Which sentence contains coordinate adjectives?

Lucy received a beautiful floral bouquet for Valentine's Day.
Lucy received a beautiful floral bouquet for Valentine's Day.

Lucy decorated a brown paper bag to put all of her cards in.
Lucy decorated a brown paper bag to put all of her cards in.

Lucy wore her pink turtleneck sweater to school on Valentine’s Day.
Lucy wore her pink turtleneck sweater to school on Valentine’s Day.

Lucy made creative, colorful Valentine’s Day cards for all of her classmates.

Lucy made creative, colorful Valentine’s Day cards for all of her classmates.

Which sentence contains coordinate adjectives that should be separated by commas?

The slinky tabby cat backed slowly away from the fence as the dog barked.
The slinky tabby cat backed slowly away from the fence as the dog barked.

I played on the best softball team in my town.
I played on the best softball team in my town.

Seven large swans came swimming by all at once, startling the ducks.
Seven large swans came swimming by all at once, startling the ducks.

The bus was hot crowded and loud, so we decided to get off and walk.

The bus was hot, crowded, and loud, so we decided to get off and walk.

Which sentence is punctuated correctly?

The eager energetic students are ready for gym to begin.
The eager energetic students are ready for gym to begin.

The red-faced exhausted students are glad that gym is over.
The red-faced exhausted students are glad that gym is over.

Before gym class, the students seem happy, excited, and ready to play.
Before gym class, the students seem happy, excited, and ready to play.

After gym class the students appear tired, worn-out, and, thirsty.

Before gym class, the students seem happy, excited, and ready to play.

The sentence that contains coordinate adjectives is:

Lucy made creative, colorful Valentine’s Day cards for all of her classmates.

Coordinate adjectives are two or more adjectives that modify the same noun independently, meaning that if you were to switch the order of the adjectives, the meaning of the sentence would not change. To identify coordinate adjectives, you can try the following step-by-step process:

Step 1: Identify the adjectives in each sentence.
Step 2: Rearrange the adjectives in a different order.
Step 3: Check if the meaning of the sentence changes when the adjectives are rearranged.

Let's apply this process to the given sentences:

1. Lucy received a beautiful floral bouquet for Valentine's Day.
- Adjectives: beautiful, floral
- Rearranged: floral beautiful
- Meaning unchanged: Yes

2. Lucy decorated a brown paper bag to put all of her cards in.
- Adjectives: brown, paper
- Rearranged: paper brown
- Meaning unchanged: Yes

3. Lucy wore her pink turtleneck sweater to school on Valentine's Day.
- Adjectives: pink, turtleneck
- Rearranged: turtleneck pink
- Meaning unchanged: Yes

4. Lucy made creative, colorful Valentine's Day cards for all of her classmates.
- Adjectives: creative, colorful
- Rearranged: colorful creative
- Meaning unchanged: Yes

After applying the process to all the sentences, we find that all the sentences contain coordinate adjectives, as the meaning remains the same when the adjectives are rearranged.