Translate (don't solve) the following into an algebraic equation:
The product of two numbers is 72, and one of the
numbers is 9. Find the other number.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?