Tom use the linear model of y=35,000+0.45x to anticipate his
salary from completin x amount of dollars worth of jobs What is Tom
base salary? What % commission does he earn? Would you be able to use
the same equation for Tom next year? Why or why not

Tom's base salary is $35,000. Convert 0.45 from decimal form to percent by moving the decimal place over two places to get 45%. 45% is the amount of commission that he earns.

If his commission, and base salary stay the same the following year then yes the same equation can be used, but if they change the equation will have to change to reflect the new values.