Richard bought rolls for a BBQ. He bought dozen wheat rolls and dozen snowflake rolls. If dozen rolls were eaten at the BBQ, how many dozen rolls does Richard have left?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?

What is the slope of the line passing through the points (-5, 7) and (-3,5)?