Answer:
14.72% probability that both professors get their grants funded
Explanation:
Independent events:
If two events, A and B are independent, the probability of both happening is:

In this question:
Event A: Professor Jane is funded
Event B: Professor Joe is funded.
Professor Jane has a probability of 0.64 of being funded.
This means that

Professor Joe has probability 0.23 of being funded.
This means that

What is the probability that both professors get their grants funded

14.72% probability that both professors get their grants funded