Which scenario depicts two independent events?
a
The dog barked and I rolled a number cube.
b
Ari chooses a partner for a group project and then Ezekial chooses a partner from the remaining classmates.
c
Luka paints during school and he stains his shirt.
d
Fred is hungry and she buys a snack from the concession stand.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.