Please help me with this question

55 sq ft

Step-by-step explanation:

Find the volume of the entire rectangle (9 * 6 * 1.25 = 67.5) , then subtract out the notch (4 * 2.5 * 1.25 = 12.5). The 4 coms from 9 - (2 + 3) = 4.

67.5 - 12.5 = 55

answer is  

a.

93.98 sq. in.

hope you got it chief

0.61 has 2 decimal places, so we put the decimal digits of 0.61, 61 over 1 followed by the number of zeroes equal to the number of decimal places, 

2:     61/1 = 61/100.