it is 20 because you have to do 4+4+6+6
"Z" would equal 8. 7 X 8 = 56
1. y=2x+7
2. y=-3x+10
3. y=10x-3
4. y=-7x+11
5. y=4x-20
6. y=-12x-8
7. y=6x+6
8. y=-5x-10
Answer:

Step-by-step explanation:
we know that
The area of a sector is equal to

where
------> is the angle in degrees
r is the radius of the circle
In this problem we have


assume

substitute the values

