Mike and Jane leave their home on bikes traveling in opposite directions on a straight road. Mike rides 5mi/h faster than Jane. After 4 h they are 124 mi apart. At what rate does Mike ride his bike?

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.