Rob collects data about how many customers enter and leave a store every hour. he records a positive number for customers entering the store and a negative number for customers leaving the store each hour. a. during which hour did more customers leave the most? b. there were 75 customers in the store at 1: 00. the store must be emptied of customers when it closes at 5: 00. how many customers must leave the store between 4: 00 and 5; 00? entering leaving 1: 00 to 2: 00 30 -12 2: 00 to 3: 00 14 -8 3: 00 to 4: 00 18 -30

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?