Answer:
D. Jacob rode a 45-kilometer race in 3 hours.
Step-by-step explanation:
1h = 15km
A. : 30m = [tex]\frac{30}{60}[/tex] × 15km
= 7.5km (not 2km)
B. : 15m = [tex]\frac{15}{60}[/tex] × 15km
= 3.75km (not 4km)
C. : 5h = 5 × 15km
= 75km (not 20km)
D. : 3h = 3 × 15km
= 45km (Yep, 45km)