Answer: Iâm sure t is the variable and 18 is the constant.
Explanation:
A constant is a number without a variable. In this case, 18 would be the constant. Now, as for t, I would say it is a variable. A variable is a symbol, a letter, for varying expressions and different quantities. So, in this case, t, or 1t, would be your variable. Hope this helped! :)