Algebra help ASAP
Amanda exercise for ten minutes everyday in the first week , twenty in the second week thirty in the the third week fourty minutes in the fourth week . Billy exercise for five minutes every day in the first week ten minutes in the second week twenty in the third week and fourty in the fourth week which statement best describes the methods used in Amanda and billy to increase th time they spent exercising

Question

Algebra help ASAP 
Amanda exercise for ten minutes everyday in the first week , twenty in the second week thirty in the the third week fourty minutes in the fourth week . Billy exercise for five minutes every day in the first week ten minutes in the second week twenty in the third week and fourty in the fourth week which statement best describes the methods used in Amanda and billy to increase th time they spent exercising

gabebae · Answer

What are the statements?

anonymous · Answer

Amanda's method is linear because the number of minutes increased by an equal number every week.

 Billy's method is linear because the number of minutes increased by an equal factor every week.
 
Both Billy’s and Amanda's methods are exponential because the number of minutes increased by an equal factor every week.
 
Both Billy’s and Amanda's methods are exponential because the number of minutes increased by an equal number every week.