A roda dianteira de uma bicicleta tem 40cm de raio. Quantos metros ela percorre ao dar 5000 voltas? Quantas voltas ela deve dar parav percorrer 9420m?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.