Question 263566
1. 200= 210/(1+x)
2. 110.00 = 133.10/(1+x)2
3. 0.08243=〖[1+x/4]〗4 - 1
4. 34.99=100ex

1. 200=210/(1+x)   Get x to the numerator by multiplying each side by the denomerator
(1+x)200=210/(1+x)(1+x)  {ex 2/3(3)...(2/3)(3/1)=2} 
(1+x)200=210              Multiply
 200+200x=210             Subtract 200
-200     -200
     200x=10              Divide by 200
        x=10/200          Simplify
        x=1/20
Answer check:            
200=210/(1+1/20)          1/20=.05
200=210/(1+.05)           Add
200=210/1.05              Divide
200=200


2. 110=133.10/(1+x)2
this is just like #1 just multiply the 2 first then the denominator
(1+x)2=(2+2x)
110=133.10/(2+2x)
(2+2x)110=133.10/(2+2x)(2+2x)
(2+2x)110=133.10
 220+220x=133.10          Subtract 220
-220     -220
     220x=-86.9           Divide by 220
        x=-86.9/220
        x= -.395
Check answer: 
110=133.10/(1-.395)2      Subtract
110=133.10/(.605)2        Multiply
110=133.10/(1.21)         Divide
110=110

3. unknown symbols used cant answer it

4. 34.99=100ex 
Find for e then plug in and solve for x to get e
34.99=100ex
34.99/x=100ex/100x
34.99/100x=e
34.99/100e=x

is the question looking for a number for x and e or as I have left them. there needs to be another equation for me to solve for e or x as a single number.