What statement best describes what a circle graph shows

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife