Answer:
145$ is the markup price i think
Step-by-step explanation:
100$+ 45%=x
100/100%=1
45%*1=45
100$+45$= 145$
Check the picture below.
let's notice that the red triangle is a 30-60-90 triangle, and the green one is a 45-45-90 triangle.
the slope is undefined
x=-1