What is the equation of a line with a slope of -2 which goes through the point (3, -1)?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square