Top speeds of a scramjet engine vary between Mach 12 and Mach 24. Rockets from the Apollo program reach Mach 30+.
Guinness World Records recognized NASA's X-43A scramjet with a new world speed...
MOPS means millions operations per second
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P(p-hat <= 0.375) = P(z <= -0.2282 = 0.4097
25% of 350 is 87.5, so after the first 4 days there are 262.5 left.
You would be testing solubility