Answer:
2 hours
Step-by-step explanation:
Sandy is 4 times faster than her brother.1/2 hour x 4 =2hours
Third one I think 10,20,30,40
Answer: I can answer 20
I think....the answer... Is......2 1/2
Answer:
7 and 5
Step-by-step explanation:
7+5=12 and 7-5=2
Answer: 30 miles per hour
Step-by-step explanation:
Speed = distance / time
= 300 / 10
= 30 miles per hour
