Select all tables that represent a proportional relationship between x and y.​

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics