Please help me, what is the slope.

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

Put the following steps for calculating net worth in the correct order

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent