Find the constant of proportionality: k = 3/2 and y= 15

Write a corresponding real world problem to represent 2x - 125=400

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?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other