Halp please, no links or i'll report "Do you think bike helmets should be mandatory for all bike riders?"

a.) This is an example of random sampling.
b.) This is an example of biased sampling.

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?