2. There are 40 students in a high school’s band. The number of girls is 1 less than 3 times the number of boys. WRITE a system of equations to find the number of boys and the number of girls that are in this school’s band. Tell me which method you would use to solve it and why. (Solving it can earn extra credit) Please help ASAP I'm failing my class and I need to get this done!

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

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11