Please help quickly I will give brainlist

Answer:
a. 73%
b. 73:100
c. 0.73
d. 73/100
Step-by-step explanation:
If you are only talking about the shaded part out of the total number of squares then these are your answers
73 out of 100 is 73%
73:100 is the ratio
73/100 = 0.73 is the decimal
73/100 is the fraction