What is the probability that a data value in a normal distribution is between a z- score of -0.28 and a z-score of 0.64? Round your answer to the nearest tenth of a percent. OA. 90.9%
OB. 58.1%
OC. 34.9%
OD. 73.3%

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

What is the value of x? enter your answer in the box.