What is the largest number that can be rounded to 2500 when rounded to the nearest ten

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?

How do you determine if an ordered pair is a solution to a given equation?

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)