1.6^2
It's telling you to multiply 1.6 by itself 2 times.
1.6 * 1.6 = 2.56
Answer:

Step-by-step explanation:
recall for a line whose equation is
y = mx + b,
the slope of this line is m
the slope of a line that is perpendicular to this line is -
in this case,
m = -
hence -
=
72 is the answer you are looking for here
Answer:
4c - 2
Step-by-step explanation:
Add up all the terms to find the perimeter.
2c + 2(c - 1)
2c + 2c - 2
4c - 2
Therefore, the perimeter is 4c - 2.
21x-33°=180°-135°
21x=12°
x=12/21