My friend justin hes already taken and hes cracked at fortnite my guy
Hey there!
Let's keep our goal in mind. We're looking fo a sum, which means a number plus a number, or the answer to that problem.
In order to simplify this, we need to use the distributive property which can be defined as:
a(b+c) = ab+ac
Now, we can use this forumula to express:
6(3+9) = 6(3) = 6(9) = 18 + 54 = 72
Hope this helps!
Answer:

Step-by-step explanation:
Convert the mixed number into an improper fraction:

Now convert fractions so that their denominators are the same:

As the denominators are now the same, we can simply add the numerators:

Now convert back into a mixed number (if required):

Answer:
All three are rational numbers.
Step-by-step explanation:
I used Desmos (a graphing calculator online) and the roots were all able to be written with fractions.