Answer:
28
Step-by-step explanation:
-4+-7=28 you just reverse the division problem
Answer:
Please see attached picture for full solution.
If we know the measure of two of the three angles of a triangle, since the sum of the angles in a triangle aways is 180º, we can write the equation for angles a, b and c:

Let's suppose we know x and y, then z is:
22,528 is 10% more of 20,480.
10% of 20,480 is 2,048
2,048 plus 20,480 is 22,528
(x-6)/2 = 8
x-6 = 16
x = 22