What is the product?
(-2X=9y? )(-4x=3
-8x2 - 6x-36xy2 - 27y2
-14x2 - 36 xy2 +27y2
8x2 +6x+36xy2 +27y2
14x2 +36xy2 + 27y2

Solve 2x+y=3 x+y=5 in substitution method

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)

Astock has a 25% probability of increasing by $10 and a 75% probability of decreasing by $5. what is the stocks expected increase or decrease?