Answers:
1, It took him 21 minutes to reach the end.
2, He biked 8 kph/mph
3, He went 2.9 km/ 1.8 mi.
ur welcome
ββββββββββββββββββββ
βββββββββββββββββββββ
βββββββββββββββββββββ
βββββββββββββββββββ
ββββββββββββββ
βββββββββββββββ This is Bob
βββββββββββββ ββ
βββββββββββββ ββ Copy and paste him so he can take over brainly.
βββββββββββββββββ
βββββββββββββββββ
ββββββββββββββββββ
βββββββββββββββββ