b. On April 26, a student who walks by the lake every day warns that the lake will be completely
covered soon. Her friend just laughs. Why might her friend be skeptical
of the warning?
C.
On April 29, biologists arrive at the lake and remove almost all the algae. They are not able
to remove all the algae and estimate that 0.5% of the surface is still covered
with algae.
Considering the pattern of growth, have the biologists solved the problem of algae growth
covering the lake? Create a mathematical representation of the situation
and justify your
answer.