Y^2-9^2
(y-9)(y+9)
To see if its right:
y*y+y*9-9*y-9*9
y^2+9y-9y-81
y^2-9^2
Answer:
96
Step-by-step explanation:
8z when 12=z
substitute the z for 112 when doing that multiply 8(12)=96
Answer:
Parimeter = (10 2/3 + 6 1/4 + 10 2/3 + 6 1/4) = 20 4/3 + 12 2/4
Parimeter = 21 1/3 + 12 1/2 = 21 2/6 + 12 3/6 = 33 5/6 ft
Amount of Wallpaper Border = 33 5/6 ft
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u>Step 1: Pull out an 11
</u>



Answer: 