9 squares because if there are 18 triangles in it then you divide 18 by 2 and get 9
1. Write down the decimal divided by 1
2. Multiply both top and bottom by 10
3. Simplify the fraction.
Answer:

Step-by-step explanation:

Answer:
20
Step-by-step explanation:
x+2x+x+10=90
4x=80
x=20
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