Find the point (Q) along BA that divides the segment into the ratio 1:3

The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle.sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.

What is the number 321,000,000 in scientific notation? also what is the number? ?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year