12/30 is = 0.4 x 100 = 40% can I have brainliest if its right?
Answer:

Step-by-step explanation:
Given
Shape: Trapezoid



Required
Determine the length of the second parallel side
The area of a trapezoid is:

Substitute values for Area, Height and Side1

Multiply both sides by 2


Divide both sides by 18



Hence;
<em>The length of the second parallel side is 17cm</em>
Answer:
Too much please's
Step-by-step explanation:
Please stop begging people to help.