12. A store sells hiking boots and sneakers. Each pair of boots costs $35 and each pair of sneakers costs $60. On one weekend, the store sold a total of 65 pairs of shoes for a total profit
of $3,275. How many of each type of shoe did the store sell. WRITE and SOLVE a system of
equations to solve this problem. Make sure to clearly define your variables.

- "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."

step-by-step explanation:

i think its a.

hope this