Final answer:
The correct values for A, B, and C in the unit conversion equation are A=1, B=3, C=12, meaning that 36 ft is equal to 12 yd.
Step-by-step explanation:
The correct answer is A=1, B=3, C=12.
To complete the unit conversion, we need to find the values of A, B, and C that make the equation 36ft x A yd/ B yd = C yd true.
Since 3 ft equals 1 yd, the correct values are A=1, B=3, and C=12. This means that 36 ft is equal to 12 yd.