The right answer is first option: 7+21
Step-by-step explanation:
Given expression is;
7(1+3)
In mathematics, the term outside is multiplied by each term inside the bracket, therefore, in this expression;

The given expression 7(1+3) is equals to 7+21.
The right answer is first option: 7+21
Keywords: multiplication, addition
Learn more about addition at:
#LearnwithBrainly
First compute the whole number of the possibilities :
10*9=90.
Compute the number of favorable possibilities:
There is 5 even numbers. Once we pick an even number,
we pick 5. So the number of the favorable possibilities is 5.
Now we compute the probability like this:
The answer would be
<span>59 and 60.</span>
Dilation is scale factor, like a dilation scale factor of 2