Can someone solve this?

Step-by-step explanation:

you would take 45 and divide it by 3 which would give you what one witch = 15

take 21 divide it by 3 which gives you one wand =7

take the brooms and divide it 12 by 3 one broom = 3

then take the wand(15) and multiply is but the wand (7) =105

take 105 and add the broom too it(4) = 109

so the answer is 109

8.3 and the 3 is repeating

hope this .

i think it will be 4feet long of what i comprehend