If the area of a circle measures 4 pi cm2?, what is the circumference of the circle in terms of pi?
A)4 pi cm
B)8 pi cm
C)12 pi cm
D)16 pi cm

How do you convert 1.27 to a percentage

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.