A player on the school baseball team reaches first base 3/10 of the time he is at-bat. Out of 80 times at bat, about how many times would you predict that he will make it to first base?

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.