Question Number 163988 by mathls last updated on 12/Jan/22
$${if}\:{here}\:{are}\:\mathrm{20}\:{apple}\:{in}\:{a}\:{box},\:{how}\:{many}\: \\ $$$${are}\:{the}\:{significant}\:{figures}\:{in}\:{it}? \\ $$
Commented by mathls last updated on 13/Jan/22
$${help}! \\ $$