Help me please:(((

-10, -11, -13, -15, -20

t≤-10

Step-by-step explanation:

Start by solving for t

-8t≥80

t≤ -10

(we flip the inequality sign because we are dividing by a negative)

Then just select all the numbers that are less than or equal to 10

-10, -11, -13, -15, -20

The equivalent inequality is what we solved for

t≤-10

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.

step-by-step explanation:

cats