The table below represents the number of math problems Jana completed as a function of the number of minutes since she began doing her homework does this situation represents a linear or nonlinear function and why?

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?