how many hours does a baseball team practice base-running if they did practice spends 3/4 hours on hitting,1/2 hour on catching, and 1/4 hour on base running. at this rate how many hours will the team spend on base running when they practice a total of 9 hours

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Can someone check my answer? you

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?