Answer:
B
Step-by-step explanation:
The range can be found by subtracting the lowest number from the highest number
First, arrange the numbers in order from least to greatest
350,280,340,290,320, 310,300
280, 290, 300, 310, 320, 340, 350
So, our lowest number is 280, and our highest is 350.
highest number - lowest number
Subtract 280 from 350
350-280
70
So, our range is 70, making B the correct answer
