Number 13 is 12 it’s a right angle so you do 90’-42 then you get 48 divide that by 4 your get 12
The answer is D, 30cm.
If you do 6+6+9+9 (to find the perimeter) you get your answer.
Answer:
x+9
Step-by-step explanation:
the sum is the answer to an addition question
"a number" is a variable (I chose x, but it can be pretty much anything you'd like :)
so, the sum of a number and 9 would be x+9 because you are adding "a number" and 9
Answer:
You have to convert the denominator. -37/36
Step-by-step explanation:
-1/4 - 7/9
-7/9(4)
-1/4 (9)
-9/39 -28/36
-37/36