according to a survey of workers, 2/50 of them walk to work, 7/50 bike, 10/50 carpool, and 31/50 drive alone. What percent of workers walk or bike to work?

Which expression will have the same sum as 3_8 + 1/4?

See attachment below and find the equivalent of tan(∠qsr)

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?