Abiologist is studying a form of bacteria that grow by 20% every hour. the graph
below models the growth of the bacteria, use the graph to approximate how many
bacteria there will be after 3 hours,

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.