4. A cannon is fired from the ground with an initial upward velocity of 100 meters per second. What is the height of the cannon ball after 3 seconds?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?

Jim had 15 minutes to do 5 laps around his school what would his time be