The answer is 8/5 which also matches quizlet
Answer:

Step-by-step explanation:
we know that
The simple interest formula is equal to

where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have

substitute in the formula above


It’s A because (x) the number of cake equal 12 in price