Quick Computing Company produces calculators. They have found that the
cost, c(x), of making x calculators is a
quadratic function in terms of x.
The company also discovered that it
costs $19.50 to produce 3 calculators,
$47.50 to produce 7 calculators, and
$105 to produce 12 calculators.
Complete the function that represents the cost c(x), to produce x calculators

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?