write an inequality for this sentence

the roller coaster is less than 3 minutes

i think its like r<3 minutes

That's probably what was intended -- but it is not the answer to what you posted.

then what is it

A roller coaster has weight, height, width, but it does not have time.

Do you mean the length of the roller coaster ride is less than 3 minutes?

Shes talking about inequalities, Shes prob in 6th grade learning it.

But yeah.

im confused answer is r <3

How can an object be a time measurement?

sorry, it is the roller coaster ride lasting less than 3 minutes

also, what does it mean to graph an inequality

http://www.mathsisfun.com/algebra/graphing-linear-inequalities.html