An example should make this clear.
If $50 is 40% what is the value of the whole amount?
Answer:- Whole amount = 100^%
By proportion this = (100/ 40) * 50
= 2.5 * 50
= $125 (answer)
Given exponential function
f(x)= 
Where x is the number of years
f(x) is the number of tuna in thousands
To find out when number of tuna is 50 thousand , we plug in 50 for f(x) and solve for x

Divide by 230 on both sides

Take ln on both sides


Divide by ln(0.881) on both sides
x = 
x= 12.04
Year = 1974 + 12.04 = 1986
so in 1986 there will be 50 thousand tuna.
X=60 Y=33.333~ Z= 80 (I’m pretty sure this is right, but I’m not sure if this is what you wanted/needed) hope this helped^-^
25/100 =0.25
10 x 0.25= 2.5
Answer:
35 feet above sea level
Step-by-step explanation:
The opposite of down is up