In 2006, punter John kicked 49 times for 1582 yards. In 2007, he kicked 52 times for 1977 yards. Did he significantly improve? Assume the standard deviations both years for the mean punting distance was 5 yards. Let a = 0.05.

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?