I think it is 39.27 but double check.
Answer:
y = 22.5
Step-by-step explanation:
Here, the 4 angles shown are all exterior angles of the polygon.
The sum of the exterior angles of a polygon is ALWAYS 360°
<em>So we add up the 4 angles (given in terms of y) and sum it to 360 and solve for y:</em>

y = 22.5
Answer:
45X2y4
Step-by-step explanation:
3√225X2y4
Simplify to
45X2y4
=45X2y4
Ok, so 7 5 4
we know that the longest side must be less than the sum of the 2 othe sides
7 is longest
7<5+4
7<9
true
yes it can be (but it's not a right triangle)
3 should be D
11 should be D
13 should be A