How do you find scale factor?

Drag the files to the correct boxes to complete the pairs. match each percent amount to its correct value 15% of 30 30% of 45 60% of 7 23% of 20 2019 edmentum. all nghts reserved

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Is the square root of 4 plus the square root of 16 rational?