A. y=-9/4x+47
B. y=-7/2x+59
C. y=-5x+69
D. y=-5x+80

the answer is D

Step-by-step explanation:

just add the x into the equation. example→ -5(16)+80 =0. based on the graph the dot is on the true line so it make sense. i use x=16 based on the graph to get y. if x and y is match with the equation then thats was the answer. sorry if my answer is wrong.

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

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.