Jasmine has $700 in her checking account at the beginning of the school year at college. She predicts that she will need $30 a week for food and traveling expenses. She wants to have at least
$250 in her account. For how many weeks can she withdraw money from her account?

15 Weeks

Step-by-step explanation:

Let's Begain

starts with $700

she will need $30 per week

Wants atleast $250 left in her account

700 - 250 = 450/30= 15

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.

but there’s no any figure there!