What would 0.010229 be if rounded to four sig figs

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Atomic nuclei of almost all elements consist of

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).