Answer:

Step-by-step explanation:





Answer:
looks to me like it could be (A.)
Step-by-step explanation:
i might be wrong if i am im sorry
91/100 is already in simplest form
Answer:
45
Step-by-step explanation:
year 1 : 18 in
every year after that he grows 3 in so 3 in so 3x9=27
then 27+18=45
61 = 3b + 7
3b + 7 = 61
3b = 61 - 7
3b = 54
b = 54/3
b = 18.