Amy can ride her bike 4miles in 30 minutes .sebastian can ride his bike 3miles in 24 minutes .at his current rate, what is the distance in miles sebastian can ride his bike in 1hour ?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Three coins are flipped. what is the probability that there will be at least two tails?