Which are lines that will intersect?

which are perpendicular lines?

which are skew lines?

Which graph represents the following piecewise defined function?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

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?