4n-32 how would i solve this and also 3w+66
will mark brainlest

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

How to do this , and can some one explain

What is the solution set of the quadratic inequality x^2-5< or equal to 0