Answer:
Answers below
Step-by-step explanation:
1. 
2. 
3. 
5. 
6. 
7. 
Answer:
8
Step-by-step explanation:
In a triangle, the midline joining the midpoints of two sides is parallel to the third side and half as long, so
2x-9 = 14/2
2x-9 = 7
2x = 7 + 9
2x = 16
x = 16/2
x = 8
Answer:
Step-by-step explanation:
x is tripled so it becomes 3x
it is decreased by 10 so it becomes 3x - 10
so the answer is <u><em>a) 3x - 10</em></u>
hope this helps
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