Four runners formed a relay team. The team completed the relay race in 3.86 minutes. Each runner ran exactly the same time, what was each runner's time? minutes

Can someone me and do the problem plz so i can understand it more better

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.