Siswa kelas VI SD Ceria terdiri atas 18 laki laki dan 10 perempuan. Rasio siswa perempuan dan laki-laki adalah ....

A car was valued at \( \$ 34,000 \) in the year 1990 . The value depreciated to \( \$ 11,000 \) by the year 2006 . A) What was the annual rate of change between 1990 and 2006 ?

Calculate \( 1 \frac{3}{4}+\frac{3}{6} \) by finding a common denominator. Give your answer as a mixed number in its simplest form. \[ 1 \frac{3}{4}+\frac{3}{6}=\square \]

In a box of 80 glasses, 3 are broken. Work out the percentage of broken glasses in the sox.

c) \( \frac{4}{5} \cdot \frac{1}{5}= \)

a) \( \frac{4}{5}+\frac{2}{5}= \)