Finding Distance Using Linear Expression

During science class, a student wrote down a linear expression to describe the relationship between time and distance travelled by a toy car. The expression is:

$$ d = 5t + 2 $$

where $$d$$ is the distance in meters and $$t$$ is the time in seconds. If the student wants to find out how far the toy car travels after 3 seconds, what is the value of $$d$$?