What’s the cos a? what’s the tan a? what’s the sin a ?

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

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

Add the two expressions 4.6 x -3 + -5.3 x + 9