Can someone explain and answer this one for me? i don't understand how to do this

What is the value of x? enter your answer in the box. photo attached.

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

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks