Answer:
Im pretty sure its 21 pounds.
A triangle is added up to 180 degrees.
A parallelogram adds up to 180 degrees.
A pentagon adds up to 540 degrees.
A hexagon adds up to 720 degrees.
Subtract 7 from both sides then divide both sides by X so the correct answer would be B.) y= n-7/x
Answer:
x = -4
Step-by-step explanation:
-3 (x + 5) = 3 (x - 1) <Start by distributing the -3 and 3 (don't forget to distribute . the negative symbol!
-3x - 15 = 3x - 3
+3x +3x <Add 3x on both sides
-15 = 3x - 3
+3 +3 <Add 3 on both sides
-12 = 3x <Divide by 3 on both sides
-4 = x
Answer:

Step-by-step explanation:
If the polygons are similar, then the corresponding sides are in proportion:
<em>cross multiply</em>

<em>divide both sides by 12</em>
