Answer:
The are is 1,200 cm squared
Step-by-step explanation:
10 * 20 = 200
20 * 50 = 1000
1000 + 200 = <em><u>1,200cm squared</u></em>
<em><u></u></em>
<em><u>Hope this helped! Have a nice day! Plz mark as brainliest!!!</u></em>
<em><u>-XxDeathshotxX</u></em>
(4-3n-5n2)
+( -2+n-3n2)
____________________
-2-2n-8n2
I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

Answer:
65
Step-by-step explanation: