Answer:
Step-by-step explanation:

Collecting like terms,

Since the signs change when its position changes.

Answer:
Maria
Step-by-step explanation:
Marias suitcase is heavier as 1600 grams to kg is 1.6kg which is less than Marias suitcase which weighs 14kg hope this helps:)
Answer:
4th option (sqrt(10))/2
Step-by-step explanation:
