Denise’s cell phone plan is $29.95 per month plus $0.10 per minutes for every minute over 300 minutes of call time. denise's cell phone bill is $99.95. for how many minutes was she billed?

Step-by-step explanation:

$99.95 - $29.95 = $70.00

Minutes   :   Money

           1   :   $0.10

           ?   :   $70.00

Minutes   :   Money

           1   :   $0.10            

    ×700                            ×700

           ?   :   $70.00

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.

homozygous. one is homozygous, while two is heterozygous.