Answer:
True.
Step-by-step explanation:
[0, 1] means all numbers in between 0 and 1, 0 and 1 included.
A probability is always a number in that interval. For example: 0.384, 0.222, 0.938, etc!
bearing in mind that a solution to a system of equations is where their graph intersect or meets, Check the picture below.
There would be 8 ones, 4 fives, 12 tens, and 4 twenties. That together would be about $228
Answer:
The step 4 is not what he should have done. But the wrong is step 5, because if he added -2x both sides, it would give the following equation:

and not 
Note that in step 4 he should have added 2x and not -2x to both sides, but we still have the equality. The problem is that step 5 is totally wrong.
I don't know what answer is expected to this question, but I would mark step 5, because this is mathematically wrong.
Solving the equation

Using distribution

Add
both sides


Add 12 both sides

Divide both sides by 5
