The total number of pupils in 6 classes is 192. Find the average number of pupils in a class.

Somebody help please, I'm stuck with this question..

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq

Arecipe calls for 2 2/4 cups of raisins, but julie only has a 1/4 measuring cup. how many 1/4 cups is needed to measure out 2 2/4 cups of raisins?

Cate purchases $1600 worth of stock and her broker estimates it will increase in value by 4.2% each year. after about how many years will the value of cate's stock be about $2000