Betty started a health and fitness program. so far, she has lost a total of 6 pounds. she is losing an average of one-half of a pound per week. if she maintains her average weekly weight loss, what will be her total weight loss in 4 weeks?

I believe the answer would be 8

Step-by-step explanation:

0.5 lbs per week times 4 would equal 2 plus the 6 pounds she's already lost would be 8

0.5x4=2+6=8

I hope this is what you were looking for sorry if it's not.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."