I couldnt solve this :((

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

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

He concluded that a heavier object dropped from the same height as a lighter object will land