Sam deposits $700 in a bank that pays 5 1/4 annual interest. how much interest did he earn after 3 months?

Around $9.19

Step-by-step explanation:

"1/4" basically means:

1/4 = 0.25

THus, we can say annnual interest rate is 5.25%

Converting to decimal, we have:

5.25/100 = 0.0525

To find annual interest, we have to multiply interest rate (0.0525) with principal amount (700), so annual interest would be:

700 * 0.0525 = $36.75

That would be earned in 1 year.

But the money is kept LESS than 1 year, 3 months to be exact. We know

3/12 = 1/4th year

So, 3 months is 1/4th of a year. So $36.75 in 1 year, 3 months would be 1/4th of that:

Rounding to 2 decimal places, that would be around $9.19

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.