Lindsey gets paid a base salary of $400 per week plus $0.15 commission on each sale she makes. Write a verbal model and a algebraic expression to represent Lindsay's total salary for the week if she makes d dollars during the week. Identify the unit for this expression?

The verbal model and an algebraic expression representing Lindsay's total salary for the week is $400 + 0.15 d.

Step-by-step explanation:

The base salary of Lindsey is, B = $400.

The commission she earns on every sale made by her is, c = $0.15.

It is provided that Lindsey makes d dollars during the week.

The amount d dollars is the total commission earned by Lindsey in a week.

The formula to compute the commission earned will be represented by the expression:

C = c * $d

= 0.15 d

The expression represent Lindsay's total salary for the week is:

Total Salary = Base Salary + Total Commission

= B + C

= $400 + 0.15 d

Thus, the verbal model and an algebraic expression representing Lindsay's total salary for the week is $400 + 0.15 d.