Does anyone know the answer to this? I think my answer is wrong

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12