Answer:
2 ohms
Step-by-step explanation:
Hi there!
Ohm's law states that
where V is the voltage, I is the current and R is the resistance.
Plug in the given information (I=7.5, V=15) and solve for R

Divide both sides by 7.5 to isolate R

Therefore, the circuit resistance would be 2 ohms.
I hope this helps!