No, she multiplied the exponents instead of adding them.
124+124=248 360-248=112 112\2=56
I think this is it 20.00(8)=x
I’m not sure if this is what you meant but here you go! Sorry if it’s wrong :(
The answer is -3 1/8 (the last part)
Answer:
Its answer is 20 because there is no x with 20 number so it willl be same
:)