Just need with this simple math question
simplify:
2(n-4)

Write a polynomial for a third-degree polynomial with leading coefficient -4

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Find the value of x. give reasons to justify your solutions! l, m ∈ kn