Hall had earned 153 points so far this year in math class. After the most recent assignment, Hall now has 192 points. What was the percent increase in points? Round your answer to the nearest tenth.

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?