 Hello and welcome to the session. In this session we discuss a question which says that this is the appropriate unit for measuring the snail's speed minus per hour or inches per minute justify and second part is which unit of measurement would you use to measure the quantity of food sold by the grocery store each day pounds per day or tons per day justify now let us start with the solution of the given person in the first part we have to find the unit rate to measure speed of a snail we are given two actions minus per hour or inches per minute now we know that the speed of a snail is very slow and it will converge more distance since minus is the larger unit than inches so minus per hour is not an appropriate unit for measuring speed of snail therefore the unit for measuring speed of a snail inches per minute because minus per hour is too now let us start with the second part now in the second part we have to find unit rate to measure the quantity of food sold by the grocery store each day and also two actions are given to us tons per day or tons per day now since grocery store cannot sell very large amount of food in a day so here the appropriate unit rate is unit rate for measuring the amount of food sold by the grocery store inches per day because tons per day is too large quantity for the grocery store to sell in a day so this is the solution of the given person and that's all for this session hope you all have enjoyed this session