Before he went to the toy store, david had 13 toy cars. forthe next 5 weeks he buys n number of cars each week. which algebraic expression represents how many toy carshe has at the end of five weeks? a 13 5no b) 13 5no c) 5 13n13n

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.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction