Convert 30 minutes into seconds​

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

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

Which of the following is an example of conditional probability