There is a saturday performance at a local theater. a theater charges $9 for an adult ticket and $4 for a child ticket. all 1020 tickets were sold and $7680 of revenue was brought in. how many adult tickets were sold?

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number