What are the constants in this expressions? -10.6+9/10+2/5m-2.4n+3m

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

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c