Answer:
D. 40%
Step-by-step explanation:
15/6=40% AKA 4/10
3/7. if you make them equivalent fractions it would be 30/70 or 14/70. 30/70 is bigger.
Answer:
and 
Step-by-step explanation:
when you solve for r in the given equation, you need to apply the square root property, which gives positive and negative answers (both should therefore be considered):

then you need to include these two possible solutions:
and 
m=52h
52 is the miles/hour, and you’re going for 4 hours, which is 208 miles.