PLEASE HELP!! How do you know when to use mass and when to use capacity? Provide examples to support your thinking.

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq