Stat! not kidding.
in producing a certain drug, one synthetic route involves three steps with percentage yields of 87.2%, 91.1%, and 86.3%.
an alternate synthesis uses two steps with percentage yields of 85.5% and 84.3%.
what is the 3 step synthesis overall yield? what is the 2 step synthesis overall yield?

She was of necessity running a grass roots target audience was unlettered

Dry-steam power plants take advantage of natural underground sources of steam. the steam is piped directly to a power plant, where it is  used  to fuel turbines and  generate  electricity. dry steam is the oldest type of power plant to  generate  electricity using  geothermal energy. hope this !

For a cell to pass the g2 checkpoint, there must be accurate and complete dna replication. there must also be a maturation promoting factor which to maintain the metaphase ii stage arrest . the g2 also known as 2nd gap  phase, is usually responsible for continued growth and preparation for cell division. 

The rules are different for multiplication and addition, but the least precise value always restricts the answer. first do the multiplication (as per standard order of operations): 24.6681 × 2.38 ≈ 58.7 since 2.38 has the fewest significant figures, it is considered the lease precise value then do the addition: 58.7 + 332.58 ≈ 391.3 since 58.7 has fewest figures right of decimal it is considered least precise. so final answer: 391.3 with four significant figures.