Answer:
The equation is given below as
![f(t)=1.5(0.90)^t](https://img.qammunity.org/2023/formulas/mathematics/college/d6ya8z1cebyf0c603as82n2ujaf74dnris.png)
The function above represents an exponential function.
The general function of an exponential function is given below as
![\begin{gathered} y=ab^x \\ b>1(growth),b=1+r \\ b<1(decay),b=1-r \\ \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/yxi1u9ofmwfq8fa831va9jaeyqwxyeeyyl.png)
By comparing coefficients, we will have
![\begin{gathered} 0.90<1(decrease\text{ over the years t\rparen} \\ 1-r=0.90 \\ r=1-0.90 \\ r=0.10 \\ r=0.10*100 \\ r=10\% \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/xcnownyjso1lcbjnbpq54e1e8u41g8dnei.png)
Hence,
The final answer is
The number of employees is decreasing by 10% every year