He goes 1.5k/h. To get that you divide the km by the hour. Then multiply the hour by 1.5 to get the km. (Ex. 2hrs x 1.5km = 3km)
Answer:

Step-by-step explanation:
apply exponent rule:

Answer:
200 x .39
Step-by-step explanation:
200 x .39= 78
N= x+15 where n = nina, x = the amount hiked together and the 15 is how much she already walked.