I WILL MARK BRAINLIEST PLEASE HELP FIND ANGLE DEB

ITS DUE AT 12 PLEASE HELP PLEASE

Step-by-step explanation:

We want to find angle DEB. We know AB is perpendicular to AC, CD is congruent to CE and angle B is 48 degrees.

ABC is a triangle. The angles in a triangle must add up to 180 degrees. Therefore:

We know two angles: ∠B= 48° and ∠A= 90° (the little square denotes a right angle).

Note that angle C is part of another triangle. It is isosceles because the two legs (CD and CE) are congruent. Therefore, the two base angles (E and D) are congruent.

∠D and ∠E equal 69 degrees.

Angle CED (∠E)  and DEB are on a straight line together. Therefore, they are supplementary and equal 180 degrees.

Angle DEB is equal to 111 degrees

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

0.50 , 0.75

step-by-step explanation: