Can anyone me? i need an exact answer, no guesses. in advance

The first step is to figure out what angle DEB is equal to. Check out the attached image. I've marked this as angle y and it is shown in purple.

Note how the purple angle y and the orange 160 degree angle form a straight angle (180 degrees). So the two angles add to 180. Let's solve for y

(orange angle) + (purple angle) = straight angle

(angle CEB) + (angle DEB) = angle CED

y+160 = 180

y+160-160 = 180-160 ... subtract 160 from both sides

y = 20

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Now we can use this to figure out angle x. The three angles x, 115, and 20, combine to 180 degrees as they all glue together to form a straight angle. Let's solve for x:

x+115+y = 180

x+115+20 = 180 ...replace y with 20

x+135 = 180 ......... combine like terms

x+135-135 = 180-135 ...... subtract 135 from both sides

x = 45

Therefore, the final answer is 45

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.

uhhh idk u yolo?