84. 4•2=8 8+4=12. The second digit must be less than 5 to create a single digit answer for your tens place.
12x+12 step by step below
Answer: 
Step-by-step explanation:
For this exercise it is important to remember the following:

Given the following expression:

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:
1. Replace
with
and simplify:

2. Descompose 12 into its prime factors:

3. Substitute into the expression:

4. Since
, you can simplify it:

Answer:
x is greater than or equal to four because it is a closed circle and shading to the right which is up
Step-by-step explanation:
Since one of the 5 vowels is paired with the four card suit.so our answer is just 5+5+5+5=20