2. The number of phones (landline and cell) owned by the members of each of nine families is 3, 5, 6, 6, 6,
6,7,7,8.
a. Use the mathematical formula for the mean (determine the sum of the data points, and divide by the
number of data points) to find the mean number of phones owned for these nine families.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Which strategy is used by public health to reduce the incidence of food poisoning?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.