Which expression can be used to the surface area of the following square pyramid

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Fill in the table with whole numbers to make 430 in five different ways