Determine whether ab ← → and cd ← → − are parallel, perpendicular, or neither. a(2, 8), b(−1, −2), c(3, 7), d(0, −3)

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

If rt is greater than ba, which statement must be true ?

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?