I need help with number 12 I’ll rate 5 stars if you help

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get

Answer asap. you begin with 1/2 scoop of ice cream. since you're hungry, you ask the vendor for 2/7 more scoops of ice cream. then, you eat 5/8 scoops. how many scoops of ice cream are left on your cone? i will mark brainliest for first correct answer.