Can you post the picture please? I’ll help you!
Hi,
Everything with exponent equal to 0 is 1.
The equation is therefore:

Hope this helps.
r3t40
Review Material:
![\sqrt[n]{x^m} = x^{\frac{m}{n}}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bx%5Em%7D%20%3D%20x%5E%7B%5Cfrac%7Bm%7D%7Bn%7D%7D)
![\frac{d}{dx}[x^n]=nx^{n-1}\\](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5Bx%5En%5D%3Dnx%5E%7Bn-1%7D%5C%5C)
![\frac{d}{dx}[\sin(x)]=\cos(x)\\](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5B%5Csin%28x%29%5D%3D%5Ccos%28x%29%5C%5C)
![\frac{d}{dx}[\cos(x)]=-\sin(x)\\](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5B%5Ccos%28x%29%5D%3D-%5Csin%28x%29%5C%5C)
![\frac{d}{dx}[constant]=0\\](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5Bconstant%5D%3D0%5C%5C)
Step-by-step explanation:
(a)

(b)

(c)

Answer:
14/5
Step-by-step explanation:
So first i manipulated a/b= 2/5. i multiplied both sides by 5 making it 5a/b=2. Then i multiplied both sides by b making it 5a=2b. Then i substituted 2b into 5a+3b=35. Making it 2b+3b=35. then i simplified it making it 5b=35. Then i solved for b making it b=7. Then i substituted b into 5a+3b=35. So that it looked like this 5a+3*7=35. then it became 5a+21=35. Then you subtract 21 making it 5a=14. You then divide by 5 making it a=14/5