From the recursive rule, you can tell the initial value is 3 and the common ratio is 12. The explicit rule is always .. (n-th term) = (initial value)*(common ratio)^(n -1)
Subsituting the values you know, you have .. an = 3*12^(n-1)
Volume=legntht imes widht time height volume=11 and 3/5 times 9 times 12 and 1/2 volue=11 and 6/10 times 9 times 12 and 5/10 volume=11.6 times 9 times 12.5 volume=1305 m^3
