He paid 75 - 5 + 3 - 3 / x + 2 (the tip) = 74, where x = 3 (they were three friends).
The 3 R's stand for: Reduce, Reuse, and Recycle. Perhaps the 3 Rs now stand for something else, but originally, the 3 Rs stood for (R)eading, w(R)iting, and a(R)ithmetic.
The 3 Rs are reduce,reuse,recycle Reduce-make smaller or less in amount degree or size Reuse-use more than once Recycle-convert waste into reusable material
One hundred!
Fifty-seven thousand, ninety-five and twenty-three hundredths.
reduce, reuse, recycle.
In education the three Rs are reading, writing, arithmetic.
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reduce reuse recycle
to reduce the amount of trash in the environment
Reduce, Reuse, Recycle
Reduce, reuse, and recycle
refuse, reduce, replace
Three school subjects that have letter R in - not always beginning with R - namely Reading wRiting aRithmetic
The solution to land pollution is the three Rs. Reduce, Reuse and Recycle.
Such a slogan is a good one to encourage reducing the waste going into landfill. But, it could also mean: In the UK, "Reading, writing and arithmetic" is often stated as being the three 'Rs' essential for a good education.
I believe it to be Reading, w-Riting and a-Rithmetic. They could also be Reduce, Re-use and Recycle.