The answer is 12.9
()=1st
0.7x3=2.1
2.1-15=
12.9
Answer:
of what? put pic again can't see it.
Step-by-step explanation:
Rewrite the equation as;
-0.3(7n - 31.2) = 0.456
Divide each term by 0.3 and simplify;
-7n + 31.2 = 1.52
Move all terms not containing n to the right side of the equation;
-7n = -29.68
Divide each term by -7 and simplify;
<u>n = 4.24 </u>
Answer:
C
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
here n = 18, so
sum = 180° × 16 = 2880° → C
Answer:
<u>1</u>
Step-by-step explanation:
