Aline passes through the points (-1, 4) and (2, -2). what is the equation of this line?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

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

2.5 milligrams is equivalent to how many grams