Bonjour je m’appelle marie et jaquette

Assign the correct gender and number.

Could someone who speaks french look over some text i wrote to see if it is correct? my meal: je vais manger les 4 morceaux de poulet mccroquettes et le biscuit de l'omrm aux morceaux de chocolat. je vais boire l'eau dasani. le repas contient 330 calories. my friends meal: mon amie va manger le wrap-éclair au poulet grillé avec sauce chipotle et le biscuit de l'omrm aux morceaux de chocolat. ils vont boire le jus d'orange minute maid. le repas contient 570 calories. i am ordering items from mcdonalds and stating how many calories are in each meal.

Explain what has to happen when you use être instead of avoir for the formation of the passé composé? il an english explanation with steps if possible