SOMEONE HELP ME PLS I WILL GIVE U !100 POINTS Refer to the following brief excerpt below:
I don’t understand it. I don’t believe in it. I don’t believe that it happened.

What literary device or technique does the author use, and what effect does it create?
(Possible options: Internal conflict, foreshadowing, repetition)

The perimeter of a picture frame is 24 inches. if the width of the picture frame is 5 inches, what is the length of the picture frame?

Walking is not the most exciting form of exercise a person can take on for fitness. yet it is low impact and requires no fancy equipment. that makes walking a simple activity for those new to exercise. walking is less likely than other exercises to cause injury to leg tendons and muscles. all it requires is a good pair of sneakers-no cables, stylish outfits, or weights required. of course, a person could increase the benefit of a workout by adding weights or speed walking. identify the main idea of this paragraph. walking is a difficult and safe exercise for beginners. walking is an easy and safe exercise for beginners. walking is a boring and dangerous form of exercise. walking is an exciting and very effective form of exercise.

What is the message? how does langston hughes convey the message in this poem?