The first thing we must do for this case is to define variables.
We have then:
x = Tim's age
Now we write the equation:
x + 7 = 3 (x-19)
Answer:
Tim's age in 7 years will be three times what it was 19 years ago:
x + 7 = 3 (x-19)
Answer:
<h2>it's b</h2><h2>you can go with it</h2>
...........
Sub x=-5+2y
2(-5+2y)+4y=14
y=3
Answer:
Irrational.
Step-by-step explanation:
Rational means that it is a whole number and can be written as a fraction. That doesn't apply for square rooted numbers. So, 
is irrational.
Answer:
9/100, 9%
Step-by-step explanation:
0.09 is equal to 9/100
0.09 is equal to 9 percent
