I need help with math test!!!

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}

Ethan purchased a container of sports drink that contains 300 calories. the label says that 80% of the calories are from carbohydrates. how many calories are from carbohydrates?

An amusement park issued a coupon to increase the number of visitors to the park each week. the function below represents the number of visitors at the amusement park x weeks after the issuance of the coupon.