Jay traveled from miami to jacksonville, a distance of 320 miles. he left miami at 8: 00 a. m. stopped for lunch for 30 minutes, and stopped for two 15 minute breaks at rest areas. he arrived in jacksonville at 2: 15 pm. what was his average rate of speed during his travel time?

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

you have 6 cupcakes