Use a system of equations to solve the problem.
For its sales staff, a company offers two salary options. Salary Option One (I1) is $346 per week plus a commission of
3 1/2%
of sales. Salary Option Two (I2) is $250 per week plus
4 1/4%
of sales. Find equations that express incomes
I1
and
I2
as functions of sales x.