Answer:
The first one (A) is the answer I got!
Step-by-step explanation:
9.00/315 is a way to solve this.
I think it's a rectangle block because the surface is flat on all the sides.
The answer is 74 years. do 11/3=3.67. Then 3.67x20 =73.4 and since that .4 is not a full year you would have to round up to 74
I don’t understand you second question but this is the work for the first one.
Hope it helps!