the length of a rectangle is increased by 35 % and its breadth is decreased by 20 %. what is the effect on its area?	Choose the correct answer.
A) 10800 B) 1299 C) 1000 D) 10000 E) 2887
<gadget id="calculator">35 + 100</gadget>
<output>135</output>

<gadget id="calculator">100 - 20</gadget>
<output>80</output>

<gadget id="calculator">135 * 80</gadget>
<output>10_800</output>

<result>A</result>
the length of a rectangle is increased by 35 % and its breadth is decreased by 20 %. what is the effect on its area?
multiply(add(35, const_100), subtract(const_100, 20))
"100 * 100 = 10000 135 * 80 = 10800 answer : a"