Step-by-step explanation:
By Exterior Angle Theorem,
81° + b = 117°.
=> b = 117° - 81° = 36°.
Answer:
b = 36
a+117 = 180 ( being straight angle)
a = 180 - 117
a = 63
Now,
81 + 63 + b = 180 ( being sum of interior of triangle)
144 + b= 180
b = 180 - 144
b 36
%50
7
solution is in the attachment
f(2)=7
Plug it in
f(x)=2^x+3
f(2)=2^2+3
f(2)=4+3
If this helps please mark as brainliest
