1. What is the value of a if the vectos <10,-4> and <5,a> are parallel?

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

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Find the value of x for which line a is parallel to line b