Someone plz help me, by the way, this is A=bxh 1/2 if you know what that means

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?

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?