Which of the following describes an angle with a vertex at y? a. zyx b. xyz c. zxy d. xzy

XYZ ZYX

Step-by-step explanation:APEX

The correct options are A and B.

Step-by-step explanation:

The angles are represented by three capital letters like: ABC or DEF. In these names middle letter represent the vertex of the angle.

The order or first and last letter does effect the angle. It means

We have to find the angle  with a vertex at Y. It means the middle letter must be Y.

In option A and B the middle letter is Y, therefore both options are correct.

In option C and D the middle letter is not Y, therefore both options are incorrect.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: