Which unit rates would be appropriate for describing the speed of cars in a race?

What is the square root of 45? (step by step working plz)

Select all the correct locations on the table. consider the following expression. 76.493 select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column equivalent not equivalent 343 equivalent not equivalent 49 78.498 78.498 75.493 equivalent not equivalent 75.7 equivalent not equivalent

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.