Ihave this huge project that is worth half my grade, but my partner won't at all. what should i do?

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

What is sin 7x/4 ? i need on this urgent trig

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?