When calculating how much you saved, you have to

Subtract the original price from the sale price.

Step-by-step explanation:

The original price of a box of cereal is $20

The sale price had been lowered though, to $16.53

Soo

20 - 16.53 = 3.47

You saved $3.47

- "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."

14.29%

step-by-step explanation: