Lonnie would like to earn at least $900 per month during the summer. He earns $10 per hour mowing lawns, and he earns $15 per hour working at a local animal shelter. Lonnie cannot
work more than 70 hours per month. Identify three different combinations of hours that Lonnie
can spend mowing lawns and working at the animal shelter each month in order to earn at least
$900 without working more than 70 hours.

- "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."

the 3rd on is correct

step-by-step explanation: