Here is how Han found 31.59 - 13: 1. At the second step, Han subtracts 52 from 55. How do you know that these numbers represent tenths? 2. At the third step, Han subtracts 39 from 39. How do you know that these numbers represent hundredths? 3. Check that Han's answer is correct by calculating the product of 2.43 and 13.​

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score