Let $\displaystyle {Y}$ represent the profit (or loss) for a certain company $\displaystyle {X}$ years after 1975. Based on the data shown below, a statistician calculates a linear model $\displaystyle {Y}={0.87}{X}+{14.25}$.

x	y
3	16.88
4	17.34
5	18.1
6	21.86
7	19.52
8	20.58
9	22.14
10	23.1
11	22.96
12	25.22
13	24.78
14	27.94
15	26.8

Use the model to estimate the profit in `1978

y =