algebra
posted by deidra .
The table shows the amount of milk that Wisconsin dairy farms produced from 1940 to 1997. Use linear model to estimate milk production in 1990.
year milk produced
1940 7
1972 7
1997 8
15.1
12.5
7.5
2.5

7.5between 7 (1972) and 8 (1997) = 7.5