17. Notthon needs to make 30 litres of a 28% acid solution. He has 2 bottles, one containing 20% acid and the other 50% acid. What
volume of each should he mix together 20 make the 28% acid solution?

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?

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?