Answer:
I thing option A. all real numbers.
but IAM not exactly sure....
Brian-90×5+85=535
Christina-90×5+65=515
So after 5 weeks Brian will do 535 push ups and Christina will have done 515.
Does the question have a photo attached on your screen because it sounds like the image you included is not completed
F(x)=2x-10
y=2x-10
x=2y-10
x+10=2y-10+10 (add both sides by 10)
2y=x+10
2y/2=x+10/2 (divide both sides by 2)
y=1/2x+5
Final Answer: f^-1(x)=1/2x+5
<span> m + n^2
= 2 + (-2)^2
= 2 + 4
= 6
answer is 6</span>
