2748/0.513 X77.2. estimation first step

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

Which of the functions graphed below has a removable discontinuity?