If john reads a book in 11 hours and sam reads the same book in 2 hours how long does it take them together

Akitchen is 12 ft. by 14 ft. with 10 ft. high walls. how much would it cost to put vinyl flooring in this room? $8.80 per ft

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?