You need to earn at least 75. you earn 6 dollars for each hour you work. write and solve and inequality that represents the number of hours (h) that you need.

6h ≥ 75

Divide each side by 6

h ≥ 12.5

This also works if you replace ≥ with =

- "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."

2

step-by-step explanation: