What are the vertex and x-intercepts of the graph of y= x2 - 4x - 21? Select
one answer for the vertex and one for the x-intercepts.
A. Vertex: (-2,-9)
B. x-intercepts: (3,0), (-7,0)
C. Vertex: (2, 13)
D. x-intercepts: (3,0), (7,0)
E. Vertex (2, -25)
F. x-intercepts: (-3,0), (7,0)

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

13.46

step-by-step explanation:

16.80 x .20 = 13.46