Iwas in special ed i i don't understand this

Emily and her feiends qent to the park. they saw 15 robins and 9 blue jays. how many birds did they see? explain how you decided what number sentence to write.

What is the inverse of the function f(x)=2x+1

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