The distance d traveled by a train varies directly as the time t that it travels. The train travels 60 km in 1/2 hr. How far will it travel in 2 hr?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?