Answer: 4.3
Step-by-step explanation: To find the range you have to subtract the highest number by the lowest number. So you'd subtract 2.6 by -1.7. And since -1.7 is already a negative number, it would get turned into a positive.
Answer:
2:3
Step-by-step explanation:
31.1% increase
% increase= 100 X (final-initial)/initial
0.28