1-10x+4y= doing simplyfi

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

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