Answer:
8
Step-by-step explanation:
<u>Area of a circle = πr^2</u>
64π / π = πr^2 / π
sqrt(64) = sqrt(r^2)
8 = r
Answer: 8
Answer:
im pretty sure its 6 hope i helped
Answer:

Step-by-step explanation:
14x45=630
43×2=86
(14×45)-(43×2)= 630-86=544
there would be 544 pens left
Answer:
11+x because the equation is reversabel.
Step-by-step explanation: