please help me I'm really behind

Answer:
50.24
Step-by-step explanation:
4 = radius
To get the diameter you need to multiply the radius by two 4 x 4 = 16 use 3.14 = 3.14 x 16 = 50.24 THERE IS THE ANSWER!!!!
Catch up btw
Answer:
rtgfg
fdudh. just ucufjvivifiicuj. 8 coccucicciciu I o