Kelly went to a store to purchase a coffee pot. She will use a coupon for 20% off. She can calculate the cost before sales tax using the following expression, where c
represents the original cost of the coffee pot.

c
−
0.2
c
Which other expression could Kelly use to calculate her cost before sales tax?

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

its very big question plz make it small

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex