In triangle xyz angle y is a right angle and sinx=20/25. find cosx in fraction and decimal form. round to the nearest hundredth, if necessary.

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents