What is the area of this face?

696ft2

Step-by-step explanation:

so first we find the area of the big tank surface

2x(18x8 + 18x12 +8x12) = 912ft2

now we find the little square area

6x6^2= 216ft2

subtract to get the final answer

912-216= 696ft2

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;