Assuming that Jupiter and Earth are similar linear sale factor=(diameter of Jupiter) /(diameter of earth)=11 thus: diameter of earth=(diameter of Jupiter)/(linear scale factor) =88000/11 =8000 miles The diameter of earth is 8000 miles
Okay i haven't done this years but base on my knowledge it think that the answer is 6 and that because: (2x+3) + (3-2x) (2x+2x+3) +(3-2x+2x) (what ever you to one side you do the next and that why it cancel each other) 3+3=6 that my explanation hope this help