The expressions that represent this model is 4(5), 5(4), and 20
Answer:
19, 24
Step-by-step explanation:
the pattern adds one then adds five
+1, +5, +1, +5, on and on
6+1 is 7
7+5 is 12
12+1 is 13
13+5 is 18
18+1 is 19
19+5 is 24
Well a triangle equals 180 degrees so if you already have 90 then you would need the other 90. By looking at the triangle I would say y=45. I hope I helped! :)