a salesman sells a mixture of raisins and roasted nuts. Raisins sell for $4/ kg and nuts sell for $6/ kg. How many kilograms of each should be mixed to make 40 kg of this snack worth $4.75/kg

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Item 1 which question could the expression 1000n answer? let n = the number of gallons of gas used. how many miles per gallon did the car get driving 1000 miles? let n = the number of grams of food needed for each dog. how many grams of food are needed to feed 1000 dogs? let n = the number of people at the show. how many empty seats were there at the show if there are 1000 seats at the theater? let n = the number of seats at the theater. how many empty seats will there by if 1000 people come to the show?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. find the probability that a randomly selected bill will have an amount greater than $173, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?