100 points plus brainliest to the one who helps me: Graph a line with given description:

through (1,3) and perpendicular to the line through (-1,-1) and (2,0)

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

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

How do you find the circumfrance of a circle?