Question Number 79491 by mathocean1 last updated on 25/Jan/20
$$\mathrm{Find}\:\mathrm{the}\:\mathrm{number}\:\mathrm{of}\:\mathrm{used}\:\mathrm{place} \\ $$
Commented by TawaTawa last updated on 25/Jan/20
$$\mathrm{L8} \\ $$
Commented by mathocean1 last updated on 25/Jan/20
Commented by jagoll last updated on 25/Jan/20
$$\mathrm{87} \\ $$
Commented by john santu last updated on 26/Jan/20
$${yes}\:{right}\:\mathrm{87} \\ $$