Fill in the blanks:
(a) In everyday affairs some measurements are approximate. They are ……………. .
(b) It is legally binding to use ………… weights and measures.
(c) The balance must be …………….. at. One place
(a) In everyday affairs some measurements are approximate. They are estimates.
(b) It is legally binding to use standardized weights and measures.
(c) The balance must be stable at. One place