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velikii [3]
3 years ago
15

Please help. I think I know but I'd like to have it confirmed.

Mathematics
1 answer:
V125BC [204]3 years ago
4 0
Part 1
40 \times 10.5 = 402
Part 2
40 \times 10.5 + 5 \times 1.5 \times 10.5 \\ = 402 + 78.75 \\ = 480.75
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