Answer:
5*x-3=12
the number is 3 because 5*3=15 and 15-3=12
Answer:
36 cm
Step-by-step explanation:
The formula to find the area of a triangle is A=1/2bh where b stands for base and h for height.
So, 8 times 9 equals 72, and 72 divided by 2 is 36.
X=121
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