2. Which answer choice best explains how the telephone improved 11 point)
communication?
Olt replaced letters because its code of dots and dashes could be transmitted instantly across wire.
Olt allowed people to speak to each other instantly across great distances.
Unlike the telegraph, it did not require wires to operate.
Once cell phone technology appeared, telephone wires became unnecessary.

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.

the correct answer is b

hope i someone

answer: mickey mouse

explanation:

the outcome of 1970 oil crisis in united states was that, they began to search ways on how to reduce oil.

in 1970 was a period when there were energy and oil crisis. those who were major centers for industrialization were forced to keep way from supplying of petroleum.

some of the result of this crisis was economic growth became stagnant because prices of oil surged.

due to the increased prices some countries like mexico and norway benefited.