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Hello, Mr Rayon! Not sure what "index notation" means. . . I assume it means "with exponents." The problem is just arithmetic, isn't it? We have: . ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ If we have to use exponents . . . . .
8 * 25 / 8 * 10 = 200 / 80 = 2.5
This was a silly question. I realised the answer a second after I made this post. The answer was
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