Express the ratio 15 red apples out 50 apples as a fraction in simplest form

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

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

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