C. 4x + y = 21
4(3) + 9 = 21
12 + 9 = 21
21 = 21
Answer:
A
I Had that question before
Where r is the radius of the circle.
Answer:
=6 units squared
Step-by-step explanation:
area=1/2h(a+b)
=1/2×2(4+2)
=6
Answer:
LOPHOPHORE: Ciliated feeding structure, ring of hollow tentacles around mouth, extension of the metacoel, functions in feeding respiration, lateral cilia create water current, frontal cilia transport food to mouth.
