Find the Perimeter and Area of a triangle that has a height of 15 feet and a base of 6 feet?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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.

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.