Answer:
4. D
11. B
12. C
16. D
17. A
Step-by-step explanation:
Multiply D×E. Which is 1×5. And subtracte 2
Use proportions because we know that the triangles are similar.

Cross multiply.
20x=28×5
x=7
answer: 7
So all the angles of triangle add up to 180 degrees. So you add up the the two other sides and subtract 180 by the answer.
61 + 58 = 119
180 - 119 = 61
So, you’re answer would be 61 degrees. Hope that helped :)
The answer is 2/5. 2*2=4 and 2*5= 10, 2*3=6 and 3*5=15