A shoemaker wants to figure out if a new shoe that she is working on will cause athletes to suffer less foot problems. This research topic is best investigated through an (experiment or observational study)? please help. it must be accurate.

4444444444444 i think

c

step-by-step explanation:

i think because what else can be a sample of every member

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !