Country Carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. City carpets charges $25 per square yard for the same carpeting and an additional installation fee of $70. Write and solve an equation to find the number of square yards of carpeting for which the total cost charged by the two companies will be the same.

10

Step-by-step explanation:

country carpets: y = 22x + 100

City carpets: y = 25x + 70

22x + 100 = 25x + 70

I could be wrong but I hope this helps!

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.