What is the percentage of $55.00 purse is on sale for $30.25

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

What is a rational number between 9.5 and 9.7

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