Help me with math if you do have a good day

Can someone check my answer? you : )

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

The four students in the table below each recorded the time and distance traveled while exercising. exercising distance (miles) time (minutes) gia 2 30 harris 5 50 ian 3 40 jackson 4 80 which list ranks the students from fastest walker to slowest walker? jackson, gia, ian, harris harris, jackson, ian, gia harris, ian, gia, jackson jackson, harris, ian, gia