A sequence is defined by the formula f(n+1)=f(n)−3. If f(4)=22, what is f(1)?

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 do i do this activity, is appreciated

How far could you drive on 50 gallons of gas