If you eat 55 pieces of chocolate cake, and you ate 45 pounds of nachos, are you 55 percent chocolate cake or 45 percent nachos

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?