Please Help I really need this will mark brainliest just don't do it for points plzz

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 following are accepted without proof in a logical system? check all that apply.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?