A) 44 degrees just look at the degree the line segment lands on in the protractor
Answer: 
Step-by-step explanation:
You have the equation
.
Then, to solve for the variable
from the equation you need:
Make the subtraction of the right side of the equation:
(As the denominators are 1 and
, the least common denominator is
)

Multiply
to both sides:

Add
to both sides:

And finally divide both sides by
:

Answer:
Nikolaus Otto was responsible for inventing the first working four-stroke engine.
Step-by-step explanation:
Answer: He now weighs 4.2 kg because 4/10 of 3 is 1.2 and 1.2+3=4.2
We know that
The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two
V - E + F = 2
clear F
F=2-V+E
in this problem
V=8
E=14
F=?
so
F=2-8+14
F=8
the answer is8 faces