Urgente por favor ayuda la mama de andrea va a preparar tres pasteles. necesita 15 huevos, 12 onzas de harina , 7 onzas de cocoa y 4,5 tazas de aceite, cuanto dinero necesita para comprar los ingredientes de cada pastel si los huevos cuestan $0,16 cada uno; $1,,23, cada onza de harina; $2.39 , cada onza de cocoa; y $2,64 , cada taza de aceite? si vende los pasteles a $75,5 dolares cada uno, cuanto gana?

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:

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.