All you have to do is divide the ounces he has into how much he gives the dog each day so 128/8 is 16
X=8 i did mental math but 56x-16-x=424
+16 +16
55x=440
/55 /55
x=8
In 1980, there were 67 new productions on Broadway. In 1987, there were 31 new productions on Broadway. Find the average rate of change in the number of new productions.
