An English riddle: what letter is a drink? It is?

An English riddle: what letter is a drink? It is?


T
Tea is pronounced tea



How to calculate 3.87 divided by 4.3 times (1.2 + 0.3)?


3.87÷4.3×(1.2+0.3)
  =(4.3-0.43)÷4.3×(1.2+0.3)
  =(4.3÷4.3-0.43÷4.3)×(1.2+0.3)
  =(1-0.1)×1.5
  =1.5-0.15
  =1.35



() divided by 8 = 15: () = 1.875 = 1 / 8
Formula calculation
Explain why


15,8,7



1+2+5+8+6+93+21+47+74+89=