What is the standard form for 200,000+80,000+700+6

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?

Rosa and lisa ade practicing free throws on the basketball court. so far, rosa has made one-and a-half times as many free throws as lisa. what is the unit ratio of rosa's free throws to lisa's free throws?