See picture for the answer
Since 40 acres of land produces 600 bushels
so the bushels produced by 1 acres of land is 600/40=15
So bushels produced by 75 actes of land = 75×15=1125 bushels
If
is the amount of strontium-90 present in the area in year
, and it decays at a rate of 2.5% per year, then

Let
be the starting amount immediately after the nuclear reactor explodes. Then

or simply

So that after 50 years, the amount of strontium-90 that remains is approximately

or about 28% of the original amount.
We can confirm this another way; recall the exponential decay formula,

where
is measured in years. We're told that 2.5% of the starting amount
decays after 1 year, so that

Then after 50 years, we have

Answer:
Step-by-step explanation:
.30 x p = ___
p - ___ = price of shoes after the discount
Answer:
Solution here,
1 US dollar=NRS 120.74
Therefore Rs 180000= 180000/120.74
=$1490.99