please help, i asked this question on here before and the person that answered was incorrect and i failed the assignment. the teacher is giving me the chance to do it again... please dont let me down guys

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

Which is the scale factor proportion for the enlargement shown?

How can i differentiate this equation?