7a-4b - [5a-3 {b-2 (a-b) }]
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Choose the triangle with x equal to 17.

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?