Which pair of expressions are equivalent? O 6 t + 5 + 2 t and 11 t + 5
O p + 3 + 2 p and 5 t + 3
O 3 n + 7 and 4 n + 7
O 2 x + 2 + 7 x and 9 x + 7

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 average rate of change for this function for the interval from x=2 to x=4 ?

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