Answer:
$3
Step-by-step explanation:
$21 - $12 = 9
9 / 3= 3
Answer is $3 each pen
Each pen cost 3 dollars
12 plus 9 is 21 which is how much you had. if you need 3 pens and you spent 9 dollars each pen costs 3 dollars because 9 divided by 3 is 3.
C.(5,5,10)
1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, ... 5, 10, 13, 15, 17, 20, 26, 29, 30, 34, 35, ... 25, 50, 75, 100, 150, 169, 175, 200, 225, ...
60 degree
E,A,D is a straight line .
Straight line=180 degree
100+20=120 -180=60
therefore X=60
15(a)(b)(c)
I don't know what your asking for
-226,981
This is how you do it.
First, you do 3-2 which is 1.
Then, you do 3-4 to the 3rd power which is -61.
After, you do 1*-61 because there are parenthesis, which equals -61.
Then, you do -61, which is the total of everything in parenthesis, and do it times the power of 3 to get -226,981.
Hope it helps!!^_^
