URGENT PLESE HELP Bart and Lisa are selling t-shirts and socks to raise money for a school trip for Springfield Elementary. Bart sold 20 t-shirts and 11 pairs of socks and made $295. Lisa sold 10 t-shirts and 15 pairs of socks and made $195.

Part A: Write a system of equations that could be used to solve for the price of one t-shirt and one pair of socks.

Part B: Solve the system to determine the price of one t-shirt and one pair of socks

20+11=31

295/31= $9.50

9.50/11= .90

actually idk i think i did this wrong but oh well

- "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."