"At least" means ≥, which is greater than or equal to.
If Suzy scored at least 18 points, then make a variable, such as x, that represents the amount of points Suzy scored.
The inequality would be x ≥ 18.
If x is the amount of points scored and 18 is the minimum she scored, then this reads "Suzy scored greater than or equal to 18 points."
"At least" requires no less than but can be equal to the value.
So the answer is x ≥ 18.
