The sales of a particular of brand of children's athletic shoes rose from 6,900,000 to 7,400,000. Find the percent of increase in sales. Round to the nearest tenth of percent, if necessary.

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.