If the number 85 is removed from a finite collection of numbers, the collection's average decreases by 1. If the number 74 is removed from the remaining collection, the collection's average does not change. How many numbers were in the original collection?​

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle. what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= 3.)quadrilateral abcd is inscribed in this circle. what is the measure of angle b? enter your answer in the box. m∠b= °4.)quadrilateral abcd is inscribed in this circle. what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle. what is the measure of angle c? enter your answer in the box.°

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?