How many solutions does 5x-y=2 5x-y=-2 have?

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet