A scientist conducted an experiment and discovered that certain plants grow faster when you give me a particular amount of fertilizer another scientist conducted the same experiment and got a similar results which concept does this best illustrate

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.