Answer:
Hi let me give you some alternative words
Here are four alternative word choices you could use to replace the words "numerous," "acts," "motivated," and "violence" in the sentence:
"A spike in racism and tension and a proliferation of racially charged violent incidents."
"A surge in racism and tension and numerous instances of racially provoked aggressive behavior."
"A rise in racism and tension and many racially inspired violent occurrences."
"An increase in racism and tension and numerous acts of racial aggression."
I hope it helps, let me know if you have any questions.