Areal estate broker's base salary is $18,000. she earns a 4% commission on total sales. how much must she sell to earn $55,000 total? show your work and explain your reasoning in the space provided below.

The salary of the real estate broker = $18,000

Commission earned on total sales = 4% or 0.04

Total income earnings = $55,000

Let the total sales be = x

Equation becomes :

Hence, the real estate broker must sell $925,000 worth of real estate to earn $55,000.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

thus, the first answer choice, y = sec x, is the correct one