If runners in a long distance race were to run straight from the starting line to the finish line they would run 13 kilometers. however, the road they run makes them travel longer than that. they must run 5 kilometers south and then head west "x" kilometers for the remainder of the race. how far do the runners travel?

Can someone me i’m confused. will give brainliest and a whole bunch of points

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

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?