Anton is a geologist. He wants to get the best possible information about lava flows from eruptions that are happening at some specific locations around the world. He wants to be able to vary what he studies based on his initial findings. Which type of investigation should Anton conduct?

d

step-by-step explanation:

an inequality is an expression which means more than one number is a solution. we graph the solutions on a number line to show all possible values. we graph using circles and arrows.

this is a filled in circle on -2 so this is . this means only answers c and d are options.

answer d points to the right.

i'll write a docs for you. hold on for a moment

it would be a. that is the only one i could think of