The bridge to cross the Neches River between Evadale and Silsbee is a toll bridge. It cost cars $3 to cross and trucks $5 to cross. Last Saturday a total of 76 cars and trucks crossed the bridge and the total tolls charged was $276. How many trucks crossed the bridge?

48? because you take 76 times 3 showing how many cars there are which is 228 then subtract 276 from 228 and boom there's your 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."

what statement? is there an image?