Find 50% of 180 pls explain

Aformual for 8 bottles of window cleaner calls for 6 cups of rubbing to customers alcohol 2 1/4 gallons of water and 1 1/2 cups of ammonia alcohol would the forula call if a factory made 1,280 bottles for stores to sell to customers

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?