Use euler's formula to find the missing number.
vertices: 13
edges: 26
faces: ?

14
15
16
17

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

Find the quotient with the restriction.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?