Can you please help me with this?

No, he should not change his estimate.

Because the blocks he already pulled out are still there and they still count as apart of the group. And the estimate is either 75% or 60%. Sorry i couldn't give you an exact answer. Hope i helped! nwn

is there a graph

step-by-step explanation:

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions