A wall is 8m long,4m high, and 22.5cm thick. how many bricks of 25cm Length, 12.5cm breadth and 8 CM high are needed to build the wall

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655