Ashopper needs 24 sandwich rolls. the store sells identical rolls in 2 differently sized packages. they sell a six pack for $5.28 and a four pack for $3.40. should the shopper buy 4 six packs or 6 four packs?

The best deal is the pack of 4.

Step-by-step explanation:

A shopper needs 24 sandwich rolls.

The price of the six pack is $5.28 . If the shopper buy a pack of 6, so he needs to but 4 of this as he needs 24 in total.

Total amount to be paid is,

The price of the four pack is $3.40 . If the shopper buy a pack of 4, so he needs to but 6 of this as he needs 24 in total.

Total amount to be paid is,

Therefore, the best deal is the pack of 4.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).