8*1,000,000+8*1/1,000,000

What are the relative frequencies, to the nearest hundredth, of the rows of the two-way table? group 1: a 15 b 45 group 2: a 20 b 25

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?