WHAT IS 12 7/100 as a decimal * Also, if you could, i will give brainliest, explain how you convert mixed numbers into a decimal plz? Thank you :)

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

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?