Amanda exercised for 10 minutes every day in the first week, 20 minutes in the second week, 30 minutes in the third week, and 40 minutes in the fourth week.

billy exercised for 5 minutes every day in the first week, 10 minutes in the second week, 20 minutes in the third week, and 40 minutes in the fourth week.

which statement best describes the methods used by amanda and billy to increase the time they spent exercising?

Billy doubles the amount of time they work out.

Amanda adds 10 minutes each week

 So what ever statement you have that shows that, would be the correct one.

You didn't list what the statements were.

segment bisector

step-by-step explanation:

line segment bisector. definition: a line, ray or segment which cuts another line segment into two equal parts. try this drag one of the orange dots at a or b and note the the line ab always divides the line pq into two equal parts.

mark brainliest!