The radius of a circle is 4.3 inches. using the formula a ≈ 3r^2, what is the approximate area of the circle?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.