I just really need help with these 3 questions.

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

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8