To which subsets of the real number system does -16 belong?

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

Me because some of question i don’t understand

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2