Hurry! ; ^; the appalachian mountains were formed about 480 million years ago. two processes have form the mountains we see today. what are they? a) faulting built the mountains and erosion wore them down. b) volcanoes built the mountains and erosion wore them down. c) volcanoes built the mountains and earthquakes tore them down. d) earthquakes built the mountains and weathering wore them down.

i'm assuming that it's c.)   volcanoes built the mountains and earthquakes tore them down.

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation:

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

c: y > - 1/6x + 1

step-by-step explanation:

dashed line - meaning this < or > also not equal

solid line - meaning this < or > also equal

your answer is c because y > means up & it's shaded up, but y < means down

hope this ! : )