PART A:
1) plug in values given to you in the area formula: A=b^2--> 788=s^2
2) solve for x: x=28.071
PART B:
1) find he perimeter formula of a square: P=4s s being a side
2) plug in the value you got for part a as s: P=4(28.071) therefore, P=112.285
The answer is A
hope this helps
Answer:

Step-by-step explanation:
Given: 
To find: c
Solution:
At
:
(i)
At
:
(ii)
At
:
(iii)
On subtracting (i) and (ii),
(iv)
On subtracting (i) and (iii),

On subtracting (iv) and (v),

Put a=3 in (iv)

Put
in (iii)

Answer:
x= y/5 − 12/5
Step-by-step explanation:
Can I have brainliest?