Since 20% can be rewritten as 1/5, then we can multiply 18 by 5 to get 90, which is your answer. Hope this helps!
Given:
Trapezoid with bases 10 and 20, and height of the trapezoid is 6.
To find:
The area of the trapezoid.
Solution:
We know that the area of a trapezoid is:

Where, h is the height of the trapezoid and
are bases of the trapezoid.
Putting
in the above formula, we get



The area of the trapezoid is 90 sq units. Therefore, the correct option is A.
It is (1,15). I recommend using a website called desmos because it helps with graphing.
25% is the percentage of magazines
5/6 im guessing ? Im pretty sure its 5:6