Vivian wants to buy a watermelon. kingston’s market has 10-pound watermelons for $3.90, but the farmer’s market has 12-pound watermelons for $4.44.
i. which market has the best price for watermelon?
ii. what is the difference between the two unit prices?

(i) Farmer's market has best price for watermelon.

(ii) Difference between the two unit prices  = $ 0.02

Step-by-step explanation:

(i)  10 pound of watermelon of Kingston market = $3.90

     Rate of 1 pound of water melon =

      Rate of 1 pound of water melon = $ 0.39

12 pounds of watermelon of farmers = $4.44.

   Rate of 1 pound of watermelon =

   Rate of 1 pound of watermelon = $0.37.

Farmer's market has the best price for watermelon as here 1 pound of watermelon is of $0.37.

(ii) Difference between the two unit prices = Kingston market  price - Farmer's market price.

Difference between the two unit prices =  $ 0.39 - $0.37.

Difference between the two unit prices  = $ 0.02

Thus, the answer is $0.02.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.