Plz help I will mark you brainlist plz help

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic

While washing her hair olivia noticed that she was losing a lot of hair she visited a clinic and the physician reassured her that her hair would grow back how do you think olivias hair will grow back

Bob, a nutritionist who works for the university medical center, has been asked to prepare special diets for two patients, susan and tom. bob has decided that susan's meals should contain at least 320 mg of calcium, 17 mg of iron, and 42 mg of vitamin c, whereas tom's meals should contain at least 280 mg of calcium, 13 mg of iron, and 34 mg of vitamin c. bob has also decided that the meals are to be prepared from three basic food