If nevin and bruce make it to the top at the same time, how many hours did it take them to reach the top? what is the elevation at the top?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Can someone tell me if these are correct?

At school 460 of the students walk to school the number of students who take public transit is 20% of the number of students who walk. how many students take public transit