Answer:
17.28in
Step-by-step explanation:
To find the area of a triangle, multiply the base by the perpendicular height (the length from the point opposite the base, to the base, which makes a 90-degree angle with the base), and half it:
7.2*4.8=34.56
34.56/2=17.28
Answer:
B) 
Step-by-step explanation:
−x + 3 = 2x - 3
-2x - 2x
___________
−3x + 3 = −3
- 3 - 3
_________
−6 = −3x
__ ___
−3 −3
[Plug this back into both equations above to get the y-coordinate of 1]; 
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Answer:
88ft
Step-by-step explanation:
600 then divid 1,056 and 12 =88ft
+ 456
----------------
1,056
Perimeter is adding all 4 sides together:
8 + 8 + 9x + 9x
Simplify by coming like terms to get:
18x + 16
The answer is d. 18x + 16