Find a unit vector u with the direction as v=<-3,4>

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor