Answer:
D)
Step-by-step explanation:
D because formula for circumference is pi x diameter or pi x r.so you multiple 3.14 by the diameter which is times 2 of the radius that will give you 16 .just multiple 3.14 by 16 which gives you 50.24
B) 25.12
Use the formula C = 2πr
Answer: p x (3q - 5 - 2pq)
Its already in standard form
y=7x-10
