Question

21 years from now, I will be 4 times as old as my present age. My present age is________ years.​

Answer 1

Electrostatics is a branch of physics that studies electric charges at rest. Since classical physics, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, ήλεκτρον, or electron, was thus the source of the word 'electricity'.a law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature

Answer 2

Answer:

17 years

please make me brainlist please