Question 22890
Step 1:  Write an equation relating the variables using k for a constant:
T=kA


Step 2:  Substitute one complete set of variables and solve for k:
T=kA
108 = k*12


Divide by 12:
{{{108/12= (12k)/12}}}
{{{9=k}}}


Step 3:  Use this value of k to answer the question about T.

The question is to find T when A= 6*8 = 48:
T=9A
T= 9*48
T= 432 seconds, which would be D.


R^2 at SCC