Chris is 4 years older than his sister, Cathy. If Chris is 16 years old, write and solve an equation to find out how old Cathy is.

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?

Write an algebraic expression for the word expression the quotient of c and 8

If 3x+8=3x+8 is it one solution or no solution