Sthe graphed function linear? a-yes, because each input value corresponds to exactly one output value. b-yes, because the outputs increase as the inputs increase. c-no, because the graph is not continuous. d- no, because the curve indicates that the rate of change is not constant.

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.

Twelve less than a number is at most 20

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years