A polygon has as many angles as it has sides.
Answer:
The equation is given by:

Step-by-step explanation:
During last years's charity walk, she raised $45.50.
During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

Answer:
-3
Step-by-step explanation:
-20-15+30+2
-35+32
-3
Answer:
-28
Step-by-step explanation:
52-24= 28
so the opposite
24-58= -28