Guys I’ve got 15 minutes to answer all of them please help I’ve been busy with the rest of the problems help

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?