How are real numbers used to describe real-world situations?

Average acceleration: i have no idea how to do this.

Find the value of x that will make l ll m

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?