The theoretical probability of spinning red is 3/8. if someone spins the spinners total of 50 times, how many times could they expect to land on red

18.75 times
The expected occurrence can be count by multiplying the chance with the number of trials. The chance in this question is 3/8 and the number of trials is 50. The calculation would be:

expected occurrence:=chance  * number of trials
expected occurence= 3/8 * 50= 18.75