On the number line, a slow bug s and a fast bug f are moving in the positive direction from the point 0. the speeds of both bugs are constant. both leave 0 at the same time, and four seconds later f has reached 12 and s has reached 8. if x is the point reached by f after t seconds, and y is the point reached by s after t seconds, express x and y in terms of t. 30 seconds after leaving point 0, how far apart are f and s ? when will f and s be 100 units apart? , ! don't write a whole bunch of nonsense for the i