Many things. In math? Rational or Radius
A letter in math can stand for any number
Math is an abbreviation of mathematics: it is not an acronym. So the h does not stand for anything!
The R in the RSPAC stand for Royal.
THe R's stand for Reduce, Reuse, Recycle.
What step does the R in PRICES stand for? Why is this step important?
decigram
Abbreviation.
Centigrams
inches
the letter L can stand for a variable.
what does rated r stand for on the television? R stands for Rsetricted, Ages 17 and up