Answer:
40 mph
Step-by-step explanation:
10 miles*4 hours = 40 miles
Answer:

Step-by-step explanation:
<u>Step 1: Multiply
</u>


<u>Step 2: Combine
</u>


Answer: 
I honestly believe its D but I'm not for sure. Sorry if i didn't help much
Answer:
350
Step-by-step explanation:
In this case you would round up, to the nearest multiple of 10. Since 348 is closer to 350 than it is to 340, the answer is 350.