Answer:
The net change is -.30
Step-by-step explanation:
increase means add
decrease means subtract
+3.50
-3.70
+3.30
-3.40
-------------
-.30
48 is 8 times as many as 6.
4 times as many as 12 is 48.
1.75 is 14 times as many as 8.
4/49
7-5 = 2
2/7*2/7 = 4/49
