HELP BESTIES I NEED HELP WITH THESE QUESTIONS

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?

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

Equation for the calculation double 2 and then add 5