Respuesta :
p(x) = 18x - (5x + 20)
p(x) = 18x - 5x - 20
p(x) = 13x - 20 <===
p(x) = 18x - 5x - 20
p(x) = 13x - 20 <===
Answer: [tex]p(x)= 13x-20[/tex]
Step-by-step explanation:
Given: The revenue for mowing x lawns is [tex]r(x) = 18x[/tex] .
Becca's cost for gas and the mower rental is c(x) = 5x + 20
The profit from mowing x lawns is given by :-
[tex]p(x)=(r-c)(x)[/tex]
The above function can be written as
[tex]p(x)=(r-c)(x)=r(x)-c(x)\\\\\Rightarrow p(x)= 18x-(5x+20)\\\\\Rightarrow p(x)= 18x-5x-20\\\\\Rightarrow p(x)= 13x-20[/tex]