Need asap. must be correct. 10 points.

ΔABC and ΔDBE are similar. Therefore the side are in proportion:

DE = 3x - 5

DB = a

AC = 20

AB = a + a = 2a

Substitute:

     cross multiply

         divide both sides by 2a ≠ 0

          add 5 to both sides

       divide both sides by 3

hi there! my name is zalgo and i am here to you out today. the answer is pretty simple (in a way). this equation equals to 25.2!

i hope this answer !

"stay and stay proud! " - zalgo

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.