Please help !!

What is the length , in centimeters , of line segment EF ?

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.