Final answer:
Juan exerts a force of 225.4 N, which is lower than Teresa's force of 230 N, making Teresa exert a greater force.
Step-by-step explanation:
In this scenario, Juan exerts a force of 23 kp while Teresa exerts a force of 230 N. To compare the two forces, we need to convert them to the same unit. 1 kp is approximately equal to 9.8 N, so 23 kp is equivalent to 23 x 9.8 N = 225.4 N. Therefore, Juan exerts a force of 225.4 N, which is lower than Teresa's force of 230 N. Hence, Teresa exerts a greater force.