Change to form fraction 35.8 % give way

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

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 tell me if this is perpendicular? !