Volunteer tutor needed: mathematics for a motivated student in Santos

My nephew, Antônio, is 12 and in the final year of school. Antônio loves school but mathematics has been a struggle since the school was closed during the pandemic. The university entrance exam is in December. We can't afford a private tutor, and the school's free sessions are full. We're looking for a volunteer who could spend one or two hours a week, in person in Santos or online, for about ten weeks. Antônio is polite, hardworking and eager. We have a quiet space and a laptop for online sessions. I'll always be at home for in-person sessions. If you're a teacher, student or professional who feels comfortable in mathematics, you could change the course of Antônio's year. You're what makes this possible, and I'll never forget it.