(Select Multiple) Select the following numbers that cannot represent the area of a polygon.

68
40
-5
sq root 30
0
-200

Which expression is equivalent to 5r674 pression is equivalent to see lo 5r614) 4r322,4 ) 5 ( 2 5t5 |

What is the value of x in the diagram below?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.