The answer for the first question is 10%. Reason: The second number (110) is larger than the first number (100) by 10 it is 10% the first number. . The answer for the second question is 25%, also. Reason: The first number (100) is smaller than the second number (110) by 10 and it is 9.1% of the second number. :)
First convert to feet 3in=3/12=1/4ft 5.5in=5.5/12ft
1:30 multiply scale by 30 1/4ft times 30=30/4=15/2=7.5ft 5.5/12ft times 30=165/12=13.75ft multiply them 7.5ft times 13.75ft=103.125 ft^2 closest is option D