What is the equation for the line perpendicular to the line represented by the equation Y =1/3 X -2 that passes though the point (4,-7)

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

With finding limits of multi variable !

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.