8+3=11 ,so the answer is 11
Answer:
A = 7
B = 4
Step-by-step explanation:
If u wanna know how i got this answer plz look at the comments below since it will delete my answer U-U
Answer:
D) 24.5
Step-by-step explanation:
use the pythagorean theorem.

Plug in the values. 
a+ 625 = 1225
then solve for a by subtracting 625 from 1225 = 600
√600= 24.5
Answer:
Well add the two number that you know and then do 180 minus that number you got when you added the first two numbers
Step-by-step explanation:
This is because a right triangle adds up to 180 degrees
A) 4*c + 2*D = 78
B) C + D =27
Multiplying B) by -2 equals
B) -2 C -2 D = -54 then adding equation A)
A) 4*c + 2*D = 78
2C = 24
Cows = 12
Ducks = 15
********************************** DOUBLE CHECK
B) C + D =27
12 + 15 = 27
Correct!