Answer: A, B, D, C, and E. I hope this is right, since it asked for rational numbers.
Step-by-step explanation:
Hey there!

Formula for the area of a triangle is (1/2)bh.
Base of this triangle is 5, height is 4.
Image attached.
Plug values into the formula:
A = (1/2)(5)(4)
Simplify.
A = (1/2)(20)
A = 10
Area of the triangle is 10 units².
Hope this helps!
Answer:
BN
NB
Step-by-step explanation: