What is the percent change between 20% and 30%

50%

Step-by-step explanation:

A change from 20 to 30 represents a positive change (increase) of 50%

Percent change = [(30 - 20) / |20|] x 100 = [(10) / 20] x 100 = 50 % (increase)

angle uzt is congruent to angle tzy. angle vzw is congruent to angle yzx.

(credits to leowren)

step-by-step explanation:

$12. that is my answer.