0.89 is your answer. Hope this helps :)
Answer:
substituting in 1
1 - x > 1
-x > 0
x<0
Step-by-step explanation:
150 + 20x, where x is the number of cellphones sold
Answer: 1. x=2
2. x=5
3.x=-3
Isolate the variable by dividing each side by factors that don't contain the variable.
Move all terms not containing x to the right side of the equation.
Hope this helped