9.) Willow was given $50 for her birthday and she plans on saving $25 a month. How many months will it take her to save a tidal of $375? The following equation represents
Willow's savings : 50 + 25x = 375
a) What does the variable x represent in the context of this problem?
b) How many months will it take her to save $375? (rewrite the equation and solve)

the solution is 12x-6y

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

- "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."