The range is the number of units between the smallest and largest number. organising your numbers from smallest to largest:
12, 19, 20, 28, 34, 36, 45, 45
in your case 12 is the smallest number of your set. lowering it to 3 would increase the distance between the two numbers, therefore increasing the range
hope that helps :)
The graph in the bottom left is correct
3.49
124.8/20=6.24
6.24-2.75=3.49
Answer:-53/12
Step-by-step explanation:
-7 2/3+(-5 1/2)+8 3/4
-7 2/3-5 1/2+8 3/4
-23/3 - 11/2 + 35/4
(4x-23 - 6x11 + 3x35)/12
(-92-66+105)/12=-53/12