Find the exact value using a sum or difference identity: cos (-300°)
Hint: sin(A + B) = sin A cos
B = cos A sin B
cos(A + B) = cos A cos B = sin A sin B

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

How to do this , and can some one explain

Arecipe calls for 32 fluid ounces of heavy cream.how many 1 pint containers of heavy cream are needed to make the recipe?