1. The problem is to understand the expression $10t$. 2. In algebra, $10t$ means 10 multiplied by the variable $t$. 3. This is a simple multiplication where 10 is the coefficient and $t$ is the variable. 4. If you know the value of $t$, you can find the product by multiplying 10 by that value. 5. For example, if $t=3$, then $10t = 10 \times 3 = 30$. 6. This expression is often used to represent a quantity that changes with $t$. 7. Remember, the coefficient (10) scales the variable $t$. 8. So $10t$ is a linear expression in $t$ with slope 10.