The sum is 
<em><u>Solution:</u></em>
Given that we have to find the sum
<em><u>Given expression is:</u></em>

We have to add both the expressions
Addition of two polynomials involves combining like terms present in the two polynomials
Like terms are the terms having same variable and same exponent
From given expression,

Remove the parenthesis and add

Combine the like terms

Add the like terms

Thus the sum is 
Answer:
$6
Step-by-step explanation:
So we get 5 hrs.
1____2____3____4____5
$2 + $1 + $1 + $1 + $1 = $6
A) You can have
1-1; 1-2; 1-3; 1-4; 1-5; 1-6; 2-2; 2-3; 2-4; 2-5; 2-6; 3-3; 3-4; 3-5; 3-6; 4-4; 4-5; 4-6; 5-5; 5-6; 6-6
Those are all possible outcomes
B) Only 6 of the options include at least one three
The fraction is: 6/21 or simplified 2/7
C) To find this answer we need a percentage
to find that...
6/21 and ?/100
(When writing put it as a fraction to visually see the next part)
We will cross-multiply: the ? will be represented by x
(6 times 100) + (21x)
600 = 21x
Now divide 600 by 21 to get about 28.6
Since 28.6 < 34 then we would get a probability of less than 34 out of 100
Is that a dice your talking about?
The bottom one should be C