Answer:
x = 
Step-by-step explanation:
Step 1: Solve
We can divide 3 from both sides to get "x" by itself

Therefore x = 
7.1 degrees.
5.7-(-1.4)
5.7+1.4= 7.1
Hope I helped!
We know that
<span>The nine radii of a regular Nonagon divides into 9 congruent isosceles triangles
</span>therefore
[the area of <span>a regular nonagon]=9*[area of isosceles triangle]
</span>[area of isosceles triangle]=b*h/2------> 15*20.6/2----> 154.5 cm²
so
[the area of a regular nonagon]=9*[154.5]------> 1390.5 cm²
the answer is
1390.5 cm²
They made $126.75 on Monday