Cheryl looks into a mirror and sees the top of a building. She sees the reflection at a point 1.5 meters above ground level. If Cheryl is standing 1.8 meters from the mirror and 201.8 meters for the base of the building, how high is the building?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.