The option which is not true regarding sets of numbers is that C. all rational numbers are integers.
Integers are whole numbers such as 2, 6, -5, etc., and rational numbers are fractions.
Answer:
7 positive integer solutions
Step-by-step explanation:
3(x-5)≤7
Distribute
3x - 15 ≤7
Add 15 to each side
3x-15+15≤7+15
3x≤22
Divide by 3
3x/3 ≤22/3
x≤7 1/3
Positive integer solutions
1,2,3,4,5,6,7 = 7
0 is neither positive nor negative
Answer: 3/2
Step-by-step explanation:

Answer:
The answer is 40%
Step-by-step explanation:
You divide 8 by 20 and you get a decimal, 0.4, make that into a percentage and you got 40%

Rewrite the term 

Expand each term so we have

Use the fact that 

Use the fact that
when a is an even number

Simplify


Let me know if you need any clarifications, thanks!