During the Industrial Age, what was the main method that businesses used to inform consumers about new inventions they could
purchase?
the multiplex
the telephone
the telegraph
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my answer personally would be advertisements

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.