Now we'll combine the last 2 scenarios: Oxygen varies directly as temperature and inversely as pressure. The volume of a
certain amount of oxygen is 20 in when the temperature is 60° and pressure is 30 psi.
Find the volume when the temperature is 90° and the pressure is 40 psi.

lol

Step-by-step explanation:

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

answer: give more info

step-by-step explanation: