Please help this is hella hard❤️​

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams