What does it mean if P(A or B) equals 1?

17 in long 1.3 ft wide and 8in high what is the volume

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50