The area of a regular decagon is 42 cm. what is the area of a regular decagon with sides 8 times as long? ?
plz explain your !
choices area 2688,336,3360,672

Enter numbers to write 0.000328 0.000328 in scientific notation. 1 1 0.000328=3.28 × 0 . 000328 = 3 . 28 × =3.28×10 = 3 . 28 × 10

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual