When solving an inequality, if I have to subtract in order to solve then I must reverse the inequality sign. true or false

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Which expression gives the exact value of x?