Ineed to find the letter c by itself ..i tried using decimals •itself to get its answer but idk
a²+b²=c²
(9)²+(3)²=c²
18+9=c²
27=c²
_=c

The number 27 can be divided into 9 and 3. When you square root each number you get the final answer as 3 square root 3.

Ok when I was working it out for 27=c^2 my answer was c=3 square root of 3, -3 square of 3

and that was the same answer for 18+9=c^2 was the same answer as 27=c^2

(9)^2+(3)^2=c^2 the answer I got for that was c= 3 square root of 10, -3 square root of 10 I hope its right and can help you

So what this is is
many words

assuming year 0 is 2017

so compound first thing till 2020, take out 30000
the remaining is copmpounded til 2022, take out 50000
remaining is compounded for 1 more year and that is equal to 80000

so from 2017 to 2020, that is 5 years
from 2020 to 2022 is 2 years
from 2022 to 2023 is 1 year

work backwards

A=P(r+1)^t
last one
A=80000
P=?
r=0.08
t=1 year

80000=P(1.08)^1
divide both sides by 1.08
I would leave in fraction
20000000/27=P

now that is the remaining after paying 50000, after 2 years of compounding

so
50000+(2000000/27)=P(1.08)^2
solve using math
about
106374=P

now reverse back

5 years
paid 30000

30000+106374=P(1.08)^5
solve using math
92813.526=P
round
$92813.53

put $92813.53 in the fund