Atool set is on sale for 424.15 dollars the original price of the tool set was $499.00 what percent of the original price is the sale price

    85%

Step-by-step explanation:

We want to find the percent that the sale price is of the original, so we take the sale price over the original

                    =  (424.15)/499

                    =.85

To change from a decimal to a percent, we multiply by 100 %

                       85%

1/800 is the right answer

- "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."