Answer:
![\begin{gathered} P(A\text{ and B)=}(3)/(8) \\ P(A\text{ and B)= 37.5\%} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ous6n0odbu8egwnpcvfmo3de4c0806advu.png)
Explanation:
The probability of an event is represented by the following equation;
![P(A)=\frac{\text{ Number of favorable outcomes}}{\text{ Total number of possible outcomes}}](https://img.qammunity.org/2023/formulas/mathematics/college/mu942g830npaq73zu5woni9ku789h0jeqi.png)
Then, he must roll an even number on the cube and spin an even number on the spinner.
The probability of two independent events happening is given as:
![P(A\text{ and B)=}P(A)\cdot P(B)](https://img.qammunity.org/2023/formulas/mathematics/college/dqbcg510pvw2ipi4ejrnvdlfrqohypi7qd.png)
Hence, Jonah's chance of advancing is:
![\begin{gathered} P(A\text{ and B)=}(3)/(6)\cdot(6)/(8) \\ P(A\text{ and B)=}(18)/(48) \\ P(A\text{ and B)=}(3)/(8) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/q931pjbr8bb6ff36g78g5wru44na15z915.png)